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  1. #1
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    Par défaut Erreur bse de donnée : Exception : The model backing the 'Account' context has changed since the
    Bonjour,
    Sur une machine j'ai 2 programmes différent utilisant la base de donnée la même table et même propriété ,ca marche.
    Sur une autre machine ca marche sur 1 programme et sur l'autre j'ai une exception :
    The model backing the 'Account' context has changed since the database was created. Consider using Code First Migrations to update the database (http://go.microsoft.com/fwlink/?LinkId=238269).
    Comment je fais ???

    Et on sait me répondre.

    Merci.

    Tout ce que j'ai fais et ca ne marche pas .
    Package Manager Console Host Version 4.5.0.4685

    Type 'get-help NuGet' to see all available NuGet commands.

    PM> Enable-Migrations
    No packages installed.
    The EntityFramework package is not installed on project 'TESTDIRECTBD'.
    PM> Enable-Migrations
    More than one context type was found in the assembly 'ADR-Prot'.
    To enable migrations for 'ADR_Prot.Context', use Enable-Migrations -ContextTypeName ADR_Prot.Context.
    To enable migrations for 'ADR.Model.Account', use Enable-Migrations -ContextTypeName ADR.Model.Account.
    To enable migrations for 'ADR.Model.LDemo', use Enable-Migrations -ContextTypeName ADR.Model.LDemo.
    PM> Enable-Migrations -ContextTypeName ADR_Prot.Context
    Migrations have already been enabled in project 'ADR-Prot'. To overwrite the existing migrations configuration, use the -Force parameter.
    PM> use Enable-Migrations -ContextTypeName ADR.Model.Account
    The term 'use' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the
    name, or if a path was included, verify that the path is correct and try again.
    At line:1 char:4
    + use <<<< Enable-Migrations -ContextTypeName ADR.Model.Account
    + CategoryInfo : ObjectNotFound: (use:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

    PM> Enable-Migrations -ContextTypeName ADR.Model.Account
    Migrations have already been enabled in project 'ADR-Prot'. To overwrite the existing migrations configuration, use the -Force parameter.
    PM> Enable-Migrations -ContextTypeName ADR_Prot.Context
    Migrations have already been enabled in project 'ADR-Prot'. To overwrite the existing migrations configuration, use the -Force parameter.
    PM> update-database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    Applying explicit migrations: [201709070820169_Accounts].
    Applying explicit migration: 201709070820169_Accounts.
    Applying automatic migration: 201801291513169_AutomaticMigration.
    System.Data.SqlClient.SqlException (0x80131904): Column names in each table must be unique. Column name 'ExpiracyHorsLine' in table 'dbo.Tokens' is specified more than once.
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
    at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
    at System.Data.Entity.Migrations.DbMigrator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinTransaction(IEnumerable`1 migrationStatements, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinNewTransaction(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClass32.<ExecuteStatements>b__30()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements, DbTransaction existingTransaction)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId, VersionedModel targetModel, IEnumerable`1 operations, IEnumerable`1 systemOperations, Boolean downgrading, Boolean auto)
    at System.Data.Entity.Migrations.DbMigrator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.<Update>b__d()
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
    at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
    ClientConnectionId:a8b2618a-5df5-4a5f-a6da-677d92b86f47
    Error Number:2705,State:4,Class:16
    Column names in each table must be unique. Column name 'ExpiracyHorsLine' in table 'dbo.Tokens' is specified more than once.
    PM> update-database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    No pending explicit migrations.
    Applying automatic migration: 201801291514219_AutomaticMigration.
    System.Data.SqlClient.SqlException (0x80131904): Column names in each table must be unique. Column name 'ExpiracyHorsLine' in table 'dbo.Tokens' is specified more than once.
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
    at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
    at System.Data.Entity.Migrations.DbMigrator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinTransaction(IEnumerable`1 migrationStatements, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinNewTransaction(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClass32.<ExecuteStatements>b__30()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements, DbTransaction existingTransaction)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId, VersionedModel targetModel, IEnumerable`1 operations, IEnumerable`1 systemOperations, Boolean downgrading, Boolean auto)
    at System.Data.Entity.Migrations.DbMigrator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.<Update>b__d()
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
    at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
    ClientConnectionId:a349d85a-059b-4dac-b90c-df0896476389
    Error Number:2705,State:4,Class:16
    Column names in each table must be unique. Column name 'ExpiracyHorsLine' in table 'dbo.Tokens' is specified more than once.
    PM> update-database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    No pending explicit migrations.
    Applying automatic migration: 201801291514438_AutomaticMigration.
    System.Data.SqlClient.SqlException (0x80131904): Column names in each table must be unique. Column name 'ExpiracyHorsLine' in table 'dbo.Tokens' is specified more than once.
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
    at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
    at System.Data.Entity.Migrations.DbMigrator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinTransaction(IEnumerable`1 migrationStatements, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinNewTransaction(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClass32.<ExecuteStatements>b__30()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements, DbTransaction existingTransaction)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId, VersionedModel targetModel, IEnumerable`1 operations, IEnumerable`1 systemOperations, Boolean downgrading, Boolean auto)
    at System.Data.Entity.Migrations.DbMigrator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.<Update>b__d()
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
    at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
    ClientConnectionId:3724cbb3-7c73-4e32-810e-8c5ead0637ee
    Error Number:2705,State:4,Class:16
    Column names in each table must be unique. Column name 'ExpiracyHorsLine' in table 'dbo.Tokens' is specified more than once.
    PM> Enable-Migrations
    More than one context type was found in the assembly 'ADR-Prot'.
    To enable migrations for 'ADR_Prot.Context', use Enable-Migrations -ContextTypeName ADR_Prot.Context.
    To enable migrations for 'ADR.Model.Account', use Enable-Migrations -ContextTypeName ADR.Model.Account.
    To enable migrations for 'ADR.Model.LDemo', use Enable-Migrations -ContextTypeName ADR.Model.LDemo.
    PM> Enable-Migrations -ContextTypeName ADR_Prot.Context -force
    Checking if the context targets an existing database...
    Code First Migrations enabled for project ADR-Prot.
    PM> Enable-Migrations -ContextTypeName ADR.Model.Account -force
    Code First Migrations enabled for project ADR-Prot.
    PM> update-database
    The project 'ADR-Prot' failed to build.
    PM> update-database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    No pending explicit migrations.
    Unable to update database to match the current model because there are pending changes and automatic migration is disabled. Either write the pending model changes to a code-based migration or enable automatic migration. Set DbMigrationsConfiguration.AutomaticMigrationsEnabled to true to enable automatic migration.
    You can use the Add-Migration command to write the pending model changes to a code-based migration.
    PM> update-database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    No pending explicit migrations.
    Applying automatic migration: 201801291517175_AutomaticMigration.
    System.Data.SqlClient.SqlException (0x80131904): Column names in each table must be unique. Column name 'ExpiracyHorsLine' in table 'dbo.Tokens' is specified more than once.
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
    at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
    at System.Data.Entity.Migrations.DbMigrator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinTransaction(IEnumerable`1 migrationStatements, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinNewTransaction(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClass32.<ExecuteStatements>b__30()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements, DbTransaction existingTransaction)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId, VersionedModel targetModel, IEnumerable`1 operations, IEnumerable`1 systemOperations, Boolean downgrading, Boolean auto)
    at System.Data.Entity.Migrations.DbMigrator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.<Update>b__d()
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
    at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
    ClientConnectionId:0a9d0849-1837-4347-8639-fc8878da5e2b
    Error Number:2705,State:4,Class:16
    Column names in each table must be unique. Column name 'ExpiracyHorsLine' in table 'dbo.Tokens' is specified more than once.
    PM> update-database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    No pending explicit migrations.
    Applying automatic migration: 201801291531144_AutomaticMigration.
    System.Data.SqlClient.SqlException (0x80131904): Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
    at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
    at System.Data.Entity.Migrations.DbMigrator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinTransaction(IEnumerable`1 migrationStatements, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinNewTransaction(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClass32.<ExecuteStatements>b__30()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements, DbTransaction existingTransaction)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId, VersionedModel targetModel, IEnumerable`1 operations, IEnumerable`1 systemOperations, Boolean downgrading, Boolean auto)
    at System.Data.Entity.Migrations.DbMigrator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.<Update>b__d()
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
    at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
    ClientConnectionId:c7aeb978-a873-493c-a4dc-d677d27dcad0
    Error Number:2705,State:4,Class:16
    Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    PM> update-database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    No pending explicit migrations.
    Applying automatic migration: 201801291531488_AutomaticMigration.
    System.Data.SqlClient.SqlException (0x80131904): Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
    at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
    at System.Data.Entity.Migrations.DbMigrator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinTransaction(IEnumerable`1 migrationStatements, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinNewTransaction(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClass32.<ExecuteStatements>b__30()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements, DbTransaction existingTransaction)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId, VersionedModel targetModel, IEnumerable`1 operations, IEnumerable`1 systemOperations, Boolean downgrading, Boolean auto)
    at System.Data.Entity.Migrations.DbMigrator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.<Update>b__d()
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
    at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
    ClientConnectionId:76c4917c-e231-450d-9269-e399a2f0677d
    Error Number:2705,State:4,Class:16
    Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    PM> Add-Migration
    cmdlet Add-Migration at command pipeline position 1
    Supply values for the following parameters:
    Name: update-database
    The pipeline has been stopped.
    PM> update-database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    No pending explicit migrations.
    Applying automatic migration: 201801291538491_AutomaticMigration.
    System.Data.SqlClient.SqlException (0x80131904): Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
    at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
    at System.Data.Entity.Migrations.DbMigrator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinTransaction(IEnumerable`1 migrationStatements, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinNewTransaction(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClass32.<ExecuteStatements>b__30()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements, DbTransaction existingTransaction)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId, VersionedModel targetModel, IEnumerable`1 operations, IEnumerable`1 systemOperations, Boolean downgrading, Boolean auto)
    at System.Data.Entity.Migrations.DbMigrator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.<Update>b__d()
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
    at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
    ClientConnectionId:109a6fc3-4a8c-49f2-93da-7660ea9457db
    Error Number:2705,State:4,Class:16
    Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    PM> Add-Migrations Account
    The term 'Add-Migrations' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spel
    ling of the name, or if a path was included, verify that the path is correct and try again.
    At line:1 char:15
    + Add-Migrations <<<< Account
    + CategoryInfo : ObjectNotFound: (Add-Migrations:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

    PM> Add-Migration Account
    Scaffolding migration 'Account'.
    The Designer Code for this migration file includes a snapshot of your current Code First model. This snapshot is used to calculate the changes to your model when you scaffold the next migration. If you make additional changes to your model that you want to include in this migration, then you can re-scaffold it by running 'Add-Migration Account' again.
    PM> Add-Migration Token
    Unable to generate an explicit migration because the following explicit migrations are pending: [201801291540409_Account]. Apply the pending explicit migrations before attempting to generate a new explicit migration.
    PM> update-database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    Applying explicit migrations: [201801291540409_Account].
    Applying explicit migration: 201801291540409_Account.
    System.Data.SqlClient.SqlException (0x80131904): Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
    at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
    at System.Data.Entity.Migrations.DbMigrator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinTransaction(IEnumerable`1 migrationStatements, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinNewTransaction(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClass32.<ExecuteStatements>b__30()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements, DbTransaction existingTransaction)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId, VersionedModel targetModel, IEnumerable`1 operations, IEnumerable`1 systemOperations, Boolean downgrading, Boolean auto)
    at System.Data.Entity.Migrations.DbMigrator.ApplyMigration(DbMigration migration, DbMigration lastMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ApplyMigration(DbMigration migration, DbMigration lastMigration)
    at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.<Update>b__d()
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
    at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
    ClientConnectionId:a5346c8b-5ef6-4b92-8a86-07ba727670c2
    Error Number:2705,State:4,Class:16
    Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    PM> Add-Migration Company
    Unable to generate an explicit migration because the following explicit migrations are pending: [201801291540409_Account]. Apply the pending explicit migrations before attempting to generate a new explicit migration.
    PM> Update-Database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    Applying explicit migrations: [201801291540409_Account].
    Applying explicit migration: 201801291540409_Account.
    System.Data.SqlClient.SqlException (0x80131904): Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
    at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
    at System.Data.Entity.Migrations.DbMigrator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinTransaction(IEnumerable`1 migrationStatements, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinNewTransaction(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClass32.<ExecuteStatements>b__30()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements, DbTransaction existingTransaction)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId, VersionedModel targetModel, IEnumerable`1 operations, IEnumerable`1 systemOperations, Boolean downgrading, Boolean auto)
    at System.Data.Entity.Migrations.DbMigrator.ApplyMigration(DbMigration migration, DbMigration lastMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ApplyMigration(DbMigration migration, DbMigration lastMigration)
    at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.<Update>b__d()
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
    at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
    ClientConnectionId:e6d61368-d121-4dfe-89d9-37e5662e75bd
    Error Number:2705,State:4,Class:16
    Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    PM> Add-Migration Token
    Unable to generate an explicit migration because the following explicit migrations are pending: [201801291540409_Account]. Apply the pending explicit migrations before attempting to generate a new explicit migration.
    PM> Enable-Migration
    The term 'Enable-Migration' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the sp
    elling of the name, or if a path was included, verify that the path is correct and try again.
    At line:1 char:17
    + Enable-Migration <<<<
    + CategoryInfo : ObjectNotFound: (Enable-Migration:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

    PM> Enable-Migrations
    More than one context type was found in the assembly 'ADR-Prot'.
    To enable migrations for 'ADR_Prot.Context', use Enable-Migrations -ContextTypeName ADR_Prot.Context.
    To enable migrations for 'ADR.Model.Account', use Enable-Migrations -ContextTypeName ADR.Model.Account.
    To enable migrations for 'ADR.Model.LDemo', use Enable-Migrations -ContextTypeName ADR.Model.LDemo.
    To enable migrations for 'ADR.Model.Token', use Enable-Migrations -ContextTypeName ADR.Model.Token.
    PM> Enable-Migrations ADR.Model.Token
    Enable-Migrations : A positional parameter cannot be found that accepts argument 'ADR.Model.Token'.
    At line:1 char:18
    + Enable-Migrations <<<< ADR.Model.Token
    + CategoryInfo : InvalidArgument: ( [Enable-Migrations], ParameterBindingException
    + FullyQualifiedErrorId : PositionalParameterNotFound,Enable-Migrations

    PM> Enable-Migrations -ContextTypeName ADR.Model.Token
    Migrations have already been enabled in project 'ADR-Prot'. To overwrite the existing migrations configuration, use the -Force parameter.
    PM> Enable-Migrations -ContextTypeName ADR.Model.Token -force
    Code First Migrations enabled for project ADR-Prot.
    PM> Enable-Migrations -ContextTypeName ADR_Prot.Context -force
    The project 'ADR-Prot' failed to build.
    PM> Enable-Migrations -ContextTypeName ADR_Prot.Context -force
    Checking if the context targets an existing database...
    Code First Migrations enabled for project ADR-Prot.
    PM> Add-Migration Token
    Unable to generate an explicit migration because the following explicit migrations are pending: [201801291540409_Account]. Apply the pending explicit migrations before attempting to generate a new explicit migration.
    PM> Update-Database –Verbose
    Using StartUp project 'ADR-Prot'.
    Using NuGet project 'ADR-Prot'.
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    Target database is: 'LicenseManagerProg' (DataSource: PCSSTD-PC\SQLEXPRESS, Provider: System.Data.SqlClient, Origin: Configuration).
    Applying explicit migrations: [201801291540409_Account].
    Applying explicit migration: 201801291540409_Account.
    ALTER TABLE [dbo].[Accounts] ADD [DateCreation] [datetime] NOT NULL DEFAULT '1900-01-01T00:00:00.000'
    System.Data.SqlClient.SqlException (0x80131904): Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
    at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
    at System.Data.Entity.Migrations.DbMigrator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinTransaction(IEnumerable`1 migrationStatements, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinNewTransaction(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClass32.<ExecuteStatements>b__30()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements, DbTransaction existingTransaction)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId, VersionedModel targetModel, IEnumerable`1 operations, IEnumerable`1 systemOperations, Boolean downgrading, Boolean auto)
    at System.Data.Entity.Migrations.DbMigrator.ApplyMigration(DbMigration migration, DbMigration lastMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ApplyMigration(DbMigration migration, DbMigration lastMigration)
    at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.<Update>b__d()
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
    at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
    ClientConnectionId:25b8feac-0d01-4c55-af98-34e4ed861a3e
    Error Number:2705,State:4,Class:16
    Column names in each table must be unique. Column name 'DateCreation' in table 'dbo.Accounts' is specified more than once.
    PM> Add-Migration InitialCreate –IgnoreChanges
    Unable to generate an explicit migration because the following explicit migrations are pending: [201801291540409_Account]. Apply the pending explicit migrations before attempting to generate a new explicit migration.
    PM> Update-Databae
    The term 'Update-Databae' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spel
    ling of the name, or if a path was included, verify that the path is correct and try again.
    At line:1 char:15
    + Update-Databae <<<<
    + CategoryInfo : ObjectNotFound: (Update-Databae:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

    PM> Update-Database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    Applying explicit migrations: [201801291540409_Account].
    Applying explicit migration: 201801291540409_Account.
    Applying automatic migration: 201801300832546_AutomaticMigration.
    System.Data.SqlClient.SqlException (0x80131904): Column names in each table must be unique. Column name 'DateCreationCompany' in table 'dbo.Companies' is specified more than once.
    at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
    at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
    at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
    at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
    at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
    at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.<NonQuery>b__0(DbCommand t, DbCommandInterceptionContext`1 c)
    at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
    at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.NonQuery(DbCommand command, DbCommandInterceptionContext interceptionContext)
    at System.Data.Entity.Internal.InterceptableDbCommand.ExecuteNonQuery()
    at System.Data.Entity.Migrations.DbMigrator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(MigrationStatement migrationStatement, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinTransaction(IEnumerable`1 migrationStatements, DbTransaction transaction, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsWithinNewTransaction(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection, DbInterceptionContext interceptionContext)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatementsInternal(IEnumerable`1 migrationStatements, DbConnection connection)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClass32.<ExecuteStatements>b__30()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
    at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements, DbTransaction existingTransaction)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable`1 migrationStatements)
    at System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String migrationId, VersionedModel targetModel, IEnumerable`1 operations, IEnumerable`1 systemOperations, Boolean downgrading, Boolean auto)
    at System.Data.Entity.Migrations.DbMigrator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.AutoMigrate(String migrationId, VersionedModel sourceModel, VersionedModel targetModel, Boolean downgrading)
    at System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable`1 pendingMigrations, String targetMigrationId, String lastMigrationId)
    at System.Data.Entity.Migrations.DbMigrator.UpdateInternal(String targetMigration)
    at System.Data.Entity.Migrations.DbMigrator.<>c__DisplayClasse.<Update>b__d()
    at System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.EnsureDatabaseExists(Action mustSucceedToKeepDatabase)
    at System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration)
    at System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String targetMigration)
    at System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
    at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
    ClientConnectionId:9441d8d8-233c-4be2-a54a-ecf63878bc5e
    Error Number:2705,State:4,Class:16
    Column names in each table must be unique. Column name 'DateCreationCompany' in table 'dbo.Companies' is specified more than once.
    PM> Add-Migration InitialCreate –IgnoreChanges
    Scaffolding migration 'InitialCreate'.
    The Designer Code for this migration file includes a snapshot of your current Code First model. This snapshot is used to calculate the changes to your model when you scaffold the next migration. If you make additional changes to your model that you want to include in this migration, then you can re-scaffold it by running 'Add-Migration InitialCreate' again.
    PM> Update-Database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    Applying explicit migrations: [201801300835093_InitialCreate].
    Applying explicit migration: 201801300835093_InitialCreate.
    Running Seed method.
    PM> Add-Migration InitialCreate
    Scaffolding migration 'InitialCreate'.
    The Designer Code for this migration file includes a snapshot of your current Code First model. This snapshot is used to calculate the changes to your model when you scaffold the next migration. If you make additional changes to your model that you want to include in this migration, then you can re-scaffold it by running 'Add-Migration InitialCreate' again.

    A previous migration called 'InitialCreate' was already applied to the target database. If you meant to re-scaffold 'InitialCreate', revert it by running 'Update-Database -TargetMigration 201801291540409_Account', then delete '201801300958492_InitialCreate1.cs' and run 'Add-Migration InitialCreate' again.
    PM> Update-Database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    Applying explicit migrations: [201801300958492_InitialCreate1].
    Applying explicit migration: 201801300958492_InitialCreate1.
    Running Seed method.
    PM>

    J'ai essayer :
    PM> enable-migrations
    More than one context type was found in the assembly 'ADR-Prot'.
    To enable migrations for 'ADR_Prot.Context', use Enable-Migrations -ContextTypeName ADR_Prot.Context.
    To enable migrations for 'ADR.Model.Account', use Enable-Migrations -ContextTypeName ADR.Model.Account.
    To enable migrations for 'ADR.Model.LDemo', use Enable-Migrations -ContextTypeName ADR.Model.LDemo.
    To enable migrations for 'ADR.Model.Token', use Enable-Migrations -ContextTypeName ADR.Model.Token.
    PM> enable-migrations -ContextTypeName ADR_Prot.Context
    Migrations have already been enabled in project 'ADR-Prot'. To overwrite the existing migrations configuration, use the -Force parameter.
    PM> enable-migrations -ContextTypeName ADR_Prot.Context -force
    Checking if the context targets an existing database...
    Code First Migrations enabled for project ADR-Prot.
    PM> enable-migrations -ContextTypeName AD.Model.Account -force
    The context type 'AD.Model.Account' was not found in the assembly 'ADR-Prot'.
    PM> Enable-Migrations -ContextTypeName ADR.Model.Account
    Migrations have already been enabled in project 'ADR-Prot'. To overwrite the existing migrations configuration, use the -Force parameter.
    PM> Enable-Migrations -ContextTypeName ADR.Model.Account -force
    Code First Migrations enabled for project ADR-Prot.
    PM> Add-Migration InitialCreate
    The project 'ADR-Prot' failed to build.
    PM> enable-migrations -ContextTypeName ADR_Prot.Context -force
    Checking if the context targets an existing database...
    Code First Migrations enabled for project ADR-Prot.
    PM> Add-Migration InitialCreate
    Scaffolding migration 'InitialCreate'.
    The Designer Code for this migration file includes a snapshot of your current Code First model. This snapshot is used to calculate the changes to your model when you scaffold the next migration. If you make additional changes to your model that you want to include in this migration, then you can re-scaffold it by running 'Add-Migration InitialCreate' again.
    PM> Update-Database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    Applying explicit migrations: [201801301009009_InitialCreate2].
    Applying explicit migration: 201801301009009_InitialCreate2.
    Running Seed method.
    PM>
    et j'ai l'erreur ci-dessous sur une machine donnée :
    The model backing the 'Account' context has changed since the database was created. Consider using Code First Migrations to update the database (http://go.microsoft.com/fwlink/?LinkId=238269).

    Conclusion : Le temps que je passe à debugger une base de donnée au lieu de stocker le tout sur des fichiers.

  2. #2
    Membre régulier
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    mai 2011
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    Informations personnelles :
    Localisation : France, Vienne (Poitou Charente)

    Informations forums :
    Inscription : mai 2011
    Messages : 670
    Points : 92
    Points
    92
    Par défaut
    Pour information : l'erreur 'ADR-Prot' failed to build est résolu ca vient de moi,
    j'ai la pris class la classe Context.

    Extrait de code-source:
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    namespace ADR_Prot.Migrations
    {
        using System;
        using System.Data.Entity.Migrations;
     
        public partial class InitialCreate2 : DbMigration
        {
            public override void Up()
            {
            }
     
            public override void Down()
            {
            }
        }
    }
    configuration.cs
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    namespace ADR_Prot.Migrations
    {
        using System;
        using System.Data.Entity;
        using System.Data.Entity.Migrations;
        using System.Linq;
     
        internal sealed class Configuration : DbMigrationsConfiguration<ADR_Prot.Context>
        {
            public Configuration()
            {
                AutomaticMigrationsEnabled = false;
            }
     
            protected override void Seed(ADR_Prot.Context context)
            {
                //  This method will be called after migrating to the latest version.
     
                //  You can use the DbSet<T>.AddOrUpdate() helper extension method 
                //  to avoid creating duplicate seed data.
            }
        }
    }


    ADR_Prot est une dll utilisant EntityFrameWork et l'executable est un service windows.
    Sur le 1er programme ,c'est tout dans un executable EntittyFrameWork.

    The model backing the 'Account' context has changed since the database was created. Consider using Code First Migrations to update the database (http://go.microsoft.com/fwlink/?LinkId=238269).
    J'ai essayer de mettre la propriété 'AutomaticMigrationsEnabled' à true et ca ne marche pas j'ai toujours l'erreur :
    The model backing the 'Account' context has changed since the database was created. Consider using Code First Migrations to update the database (http://go.microsoft.com/fwlink/?LinkId=238269).

    J'ai essayer :
    Je rajoute :
    J'ai supprimer tous le répertoire 'bin' et 'obj' del la dll et du service , le service utilisant bien sure cette dll bref.
    J'ai supprimer tous les migrations sauf configuration.cs
    J'ai supprimer tous le répertoire 'bin' et 'obj de l'executable


    J'ai cleaner la solution Menu Build->Clean Solution et
    ensuite Build->RebuildSolution.

    J'ai l'erreur :
    The model backing the 'Account' context has changed since the database was created. Consider using Code First Migrations to update the database (http://go.microsoft.com/fwlink/?LinkId=238269).
    J'ai essayer dans le Packager Manager Console ceux-ci : :
    PM> Add-Migration InitialCreate
    Scaffolding migration 'InitialCreate'.
    The Designer Code for this migration file includes a snapshot of your current Code First model. This snapshot is used to calculate the changes to your model when you scaffold the next migration. If you make additional changes to your model that you want to include in this migration, then you can re-scaffold it by running 'Add-Migration InitialCreate' again.
    PM> Update-Database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    Applying explicit migrations: [201801301037468_InitialCreate].
    Applying explicit migration: 201801301037468_InitialCreate.
    Running Seed method.
    PM>
    J'ai refais un rebuild all de ADR-Prot :
    et j'obtiens la même erreur :
    The model backing the 'Account' context has changed since the database was created. Consider using Code First Migrations to update the database (http://go.microsoft.com/fwlink/?LinkId=238269).
    J'ai essayer dans le Packager Manager Console ceux-ci :
    PM> Add-Migration InitialCreate
    Scaffolding migration 'InitialCreate'.
    The Designer Code for this migration file includes a snapshot of your current Code First model. This snapshot is used to calculate the changes to your model when you scaffold the next migration. If you make additional changes to your model that you want to include in this migration, then you can re-scaffold it by running 'Add-Migration InitialCreate' again.
    PM> Update-Database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    Applying explicit migrations: [201801301037468_InitialCreate].
    Applying explicit migration: 201801301037468_InitialCreate.
    Running Seed method.
    PM> Add-Migration Account
    Scaffolding migration 'Account'.
    The Designer Code for this migration file includes a snapshot of your current Code First model. This snapshot is used to calculate the changes to your model when you scaffold the next migration. If you make additional changes to your model that you want to include in this migration, then you can re-scaffold it by running 'Add-Migration Account' again.
    PM> Update-Database
    Specify the '-Verbose' flag to view the SQL statements being applied to the target database.
    Applying explicit migrations: [201801301045079_Account].
    Applying explicit migration: 201801301045079_Account.
    Running Seed method.
    PM>
    Pour information :
    La ligne de code - dessous passe sans exception.

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     ret = true;
                                foreach (var entity in pfd.Context.ChangeTracker.Entries())
                                {
                                    entity.Reload();
                                }
                                BDRefreshed1 = true;
    Mais cette ligne code est suspect pour provoquer l'exception :
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    var compagny = dataService.Select<Company>().ToList();
                        //IEnumerable<Account> itaccount = dataService.Select<Account>(); ;
                        IEnumerable<Account> itaccount = dataService.Select<Account>().Where(ee => ee.AccountNumber == number); ;    /////INCRIMINER ?
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    namespace ADR.Model.Services
    {
     
        public class DataMethods<Tcontext> : IDataMethods where Tcontext : DbContext, new()
        {
            public DataMethods()
            {
                Context = new Tcontext();
            }
            public Tcontext Context { get; private set; }
            public T Delete<T>(T item, bool SaveNow) where T : class
            {
                Context.Entry(item).State = EntityState.Deleted;
                if (SaveNow)
                {
                    Context.SaveChanges();
                }
                return item;
            }
     
            public void Dispose()
            {
                Context.Dispose();
            }
     
            public T Insert<T>(T item, bool SaveNow) where T : class
            {
                Context.Entry(item).State = EntityState.Added;
                if (SaveNow)
                {
     
                    Context.SaveChanges();
                }
                return item;
            }
     
            public int Save()
            {
                int r = 0;
                try
                {
                    r = Context.SaveChanges();
                }
                catch(Exception ee)
                {
                    int a = 4;
                    a = 5;
                }
                return r;
            }
     
            public IEnumerable<T> Select<T>() where T : class
            {
                return Context.Set<T>();
            }
     
            public T Update<T>(T item, bool SaveNow) where T : class
            {
                Context.Entry(item).State = EntityState.Modified;
                if (SaveNow)
                {
                    Context.SaveChanges();
                }
                return item;
            }
        }
        public class CompanyDatas : DataMethods<Context>
        {
     
        }
    }
    En faite il fallait faire 2 fois,
    Add-Migration InitialCreate

    aprés de supprimer la table de migration.
    Ca à l'air de fonctionner.
    Je le marque résolut

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