onjours tout le monde

je viens de commencer un cours sur les EJBs,en effet c'est le tutoriel du site http://www.jboss.org/ejb3.
j'ai telecharger le tuto et les source zipé mais il demande de build and run the examples soit sue Ant ou sur Maven

j'ai aller sur le site de maven,telecharger et faire le Quikstart project tout marche a merveille

mais quand j'essaye de faire la commande "mvn clean install -PRunSingleTutorial" sur l'un des source du tuto me done l'erreur suivante :




[INFO] Scanning for projects...
Downloading: http://repo1.maven.org/maven2/org/jb...b3-tutorial-co
mmon/1.1.1/jboss-ejb3-tutorial-common-1.1.1.pom
[INFO] Unable to find resource 'org.jboss.ejb3:jboss-ejb3-tutorial-common:pom:1.
1.1' in repository central (http://repo1.maven.org/maven2)
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Failed to resolve artifact.

GroupId: org.jboss.ejb3
ArtifactId: jboss-ejb3-tutorial-common
Version: 1.1.1

Reason: Unable to download the artifact from any repository

org.jboss.ejb3:jboss-ejb3-tutorial-common:pom:1.1.1

from the specified remote repositories:

central (http://repo1.maven.org/maven2)



[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.reactor.MavenExecutionException: Cannot find parent: org.jboss.
ejb3:jboss-ejb3-tutorial-common for project: null:jboss-ejb3-tutorial-stateless:
jar:1.1.1-SNAPSHOT for project null:jboss-ejb3-tutorial-stateless:jar:1.1.1-SNAP
SHOT
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:421)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:295)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:132)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:290)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:592)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)

at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.project.ProjectBuildingException: Cannot find parent
: org.jboss.ejb3:jboss-ejb3-tutorial-common for project: null:jboss-ejb3-tutoria
l-stateless:jar:1.1.1-SNAPSHOT for project null:jboss-ejb3-tutorial-stateless:ja
r:1.1.1-SNAPSHOT
at org.apache.maven.project.DefaultMavenProjectBuilder.assembleLineage(D
efaultMavenProjectBuilder.java:1377)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildInternal(Def
aultMavenProjectBuilder.java:820)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFi
leInternal(DefaultMavenProjectBuilder.java:505)
at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMave
nProjectBuilder.java:197)
at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:626)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:504)
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:408)
... 11 more
Caused by: org.apache.maven.project.ProjectBuildingException: POM 'org.jboss.ejb
3:jboss-ejb3-tutorial-common' not found in repository: Unable to download the ar
tifact from any repository

org.jboss.ejb3:jboss-ejb3-tutorial-common:pom:1.1.1

from the specified remote repositories:
central (http://repo1.maven.org/maven2)

for project org.jboss.ejb3:jboss-ejb3-tutorial-common
at org.apache.maven.project.DefaultMavenProjectBuilder.findModelFromRepo
sitory(DefaultMavenProjectBuilder.java:602)
at org.apache.maven.project.DefaultMavenProjectBuilder.assembleLineage(D
efaultMavenProjectBuilder.java:1373)
... 17 more
Caused by: org.apache.maven.artifact.resolver.ArtifactNotFoundException: Unable
to download the artifact from any repository

org.jboss.ejb3:jboss-ejb3-tutorial-common:pom:1.1.1

from the specified remote repositories:
central (http://repo1.maven.org/maven2)


at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(De
faultArtifactResolver.java:212)
at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(De
faultArtifactResolver.java:74)
at org.apache.maven.project.DefaultMavenProjectBuilder.findModelFromRepo
sitory(DefaultMavenProjectBuilder.java:555)
... 18 more
Caused by: org.apache.maven.wagon.ResourceDoesNotExistException: Unable to downl
oad the artifact from any repository
at org.apache.maven.artifact.manager.DefaultWagonManager.getArtifact(Def
aultWagonManager.java:332)
at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(De
faultArtifactResolver.java:200)
... 20 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1 second
[INFO] Finished at: Thu Apr 21 21:30:49 WET 2011
[INFO] Final Memory: 1M/2M
[INFO] ------------------------------------------------------------------------
E:\MASTERMIAGE\JBoss-EJB3\ejb3-tutorials\source\stateless>


je sais pas où reside l'erreur exactement car c'est ma premiere utilisation du maven ?

merciiii d'avance