CRM: erreur de création de rapport

[abrmed]

onjour tout le monde,

j'ai une petite question concernant la création des rapports dans CRM, une erreur se produit quand j'essaie d'en faire un nouveau rapport avec l'assistant rapport de CRM en me disant de ressayer la création ou de communiquer avec Microsoft CRM blog.( j'ai pas de code d'erreur ou autre chose)
J’ai vérifié les droits d'accès dans la base de données de dernier, dans l'AD et dans la console CRM et tous les accès sont bien présents.
dans les log files , il me montre juste qu'il essaie d'en faire un rapport et qu'une erreur qui se produit (pas plus que ça)
dans l’évent viewer j'ai ce message:


Event Type: Warning
Event Source: ASP.NET 2.0.50727.0
Event Category: Web Event
Event ID: 1309
Date: 2011-08-11
Time: 13:42:00
User: N/A
Computer: serverXXXXX
Description:
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 8/11/2011 1:42:00 PM
Event time (UTC): 8/11/2011 5:42:00 PM
Event ID: 295f3524df6a576b5215a
Event sequence: 101825
Event occurrence: 6
Event detail code: 0

Process information:
Process ID: 288
Process name: w3wp.exe
Account name: NT AUTHORITY\NETWORK SERVICE

Exception information:
Exception type: TargetInvocationException
Exception message: Exception has been thrown by the target of an invocation.

Request information:
Request URL: http://localhost/MAPAQ/CRMReports/Ad...QEeCrIwBQVpgAn unhandled exception has occurred.fiSGVAOMJXs2nehIRSsQlwbBZTA2Au7uIOHGBagJ4CO4a&CRMWRPCTokenTimeStamp=634486813175587985
Request path: /MAPAQ/CRMReports/AdHocWizard/SuccessFailurePage.aspx
User host address: 127.0.0.1
User: adminuser
Is authenticated: True
Authentication Type: Negotiate
Thread account name: NT AUTHORITY\NETWORK SERVICE

Thread information:
Thread ID: 1
Thread account name: NT AUTHORITY\NETWORK SERVICE
Is impersonating: False
Stack trace: at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Web.Services.Protocols.LogicalMethodInfo.Invoke(Object target, Object[] values)
at Microsoft.Crm.Extensibility.InternalOperationPlugin.Execute(IPluginExecutionContext context)
at Microsoft.Crm.Extensibility.PluginStep.Execute(PipelineExecutionContext context)
at Microsoft.Crm.Extensibility.Pipeline.Execute(PipelineExecutionContext context)
at Microsoft.Crm.Extensibility.MessageProcessor.Execute(PipelineExecutionContext context)
at Microsoft.Crm.Extensibility.InternalMessageDispatcher.Execute(PipelineExecutionContext context)
at Microsoft.Crm.Extensibility.ExternalMessageDispatcher.Execute(String messageName, Int32 primaryObjectTypeCode, Int32 secondaryObjectTypeCode, PropertyBag fields, CorrelationToken correlationToken, CallerOriginToken originToken, UserAuth userAuth, Guid callerId)
at Microsoft.Crm.Sdk.RequestBase.Process(Int32 primaryObjectTypeCode, Int32 secondaryObjectTypeCode, CorrelationToken correlationToken, CallerOriginToken originToken, UserAuth userAuth, Guid callerId)
at Microsoft.Crm.Sdk.RequestBase.Process(CorrelationToken correlationToken, CallerOriginToken originToken, UserAuth userAuth, Guid callerId)
at Microsoft.Crm.Sdk.CrmServiceInternal.Execute(RequestBase request, CorrelationToken correlationToken, CallerOriginToken originToken, UserAuth userAuth, Guid callerId)
at Microsoft.Crm.Sdk.InProcessCrmService.Execute(Object request)
at Microsoft.Crm.Application.Platform.ServiceCommands.PlatformCommand.ExecuteInternal()
at Microsoft.Crm.Application.Platform.DataSource.CreateFromTemplate(String wizardXml)
at Microsoft.Crm.Web.Reporting.AdHocWizard.SuccessFailurePage.ConfigurePage()
at Microsoft.Crm.Application.Controls.AppUIPage.OnPreRender(EventArgs e)
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)


Custom event details:

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.


c’est tout ce que j,ai comme information, est ce que quelqu'un aurait une idée sur cela.??????

Merci d'avance.