I want to check-in some files in RTC but RTC says that my project is out of sync. He prompts me to reload the related project but i cant reload my project because it gets an NullPointerException.

I am using RTC version 2.0.2.I200911251653-2-17...

here is some piece of eclipse error log:

!SESSION 2011-04-28 13:24:02.481 -----------------------------------------------
eclipse.buildId=M20100909-0800
java.version=1.6.0_12-ea
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments: -product org.eclipse.epp.package.cpp.product
Command-line arguments: -os linux -ws gtk -arch x86_64 -product org.eclipse.epp.package.cpp.product

This is a continuation of log file /home/tkarabel/workspaceRTC/.metadata/.bak_7.log
Created Time: 2011-05-11 16:44:49.125

!ENTRY com.ibm.team.filesystem.client 1 800 2011-07-06 00:18:51.071
!MESSAGE Status INFO: com.ibm.team.filesystem.client code=4 Contents are out of sync. Consider creating a patch and reloading. null children=

!ENTRY org.eclipse.core.jobs 4 2 2011-07-06 00:18:53.735
!MESSAGE An internal error occurred during: "Accepting change sets".
!STACK 0
java.lang.NullPointerException
at com.ibm.team.filesystem.client.internal.MetadataChangeTracker.computeLocalPath(MetadataChangeTracker.java:593)
at com.ibm.team.filesystem.client.internal.MetadataChangeTracker.getLocalChanges(MetadataChangeTracker.java:480)
at com.ibm.team.filesystem.client.internal.localchanges.LocalChangeTracker.refreshPendingChanges(LocalChangeTracker.java:928)
at com.ibm.team.filesystem.client.internal.localchanges.LocalChangeTracker.access$0(LocalChangeTracker.java:835)
at com.ibm.team.filesystem.client.internal.localchanges.LocalChangeTracker$LocalChangesComputer.runRecompute(LocalChangeTracker.java:191)
at com.ibm.team.filesystem.client.internal.localchanges.LocalChangeTracker$LocalChangesComputer.rejoin(LocalChangeTracker.java:205)
at com.ibm.team.filesystem.client.internal.localchanges.LocalChangeTracker.syncChanges(LocalChangeTracker.java:832)
at com.ibm.team.filesystem.client.internal.localchanges.LocalChangeManager.refreshSynchronously(LocalChangeManager.java:347)
at com.ibm.team.filesystem.client.internal.localchanges.LocalChangeManager.doRefresh(LocalChangeManager.java:384)
at com.ibm.team.filesystem.client.internal.localchanges.LocalChangeManager.refreshChanges(LocalChangeManager.java:630)
at com.ibm.team.filesystem.client.internal.load.MergeLoadMutator.execute(MergeLoadMutator.java:363)
at com.ibm.team.filesystem.client.internal.operations.FileSystemOperation.run(FileSystemOperation.java:90)
at com.ibm.team.filesystem.client.internal.operations.LoadOperation.load(LoadOperation.java:1057)
at com.ibm.team.filesystem.client.internal.operations.LoadOperation$2.run(LoadOperation.java:688)
at com.ibm.team.filesystem.rcp.core.internal.resources.ResourceSharingManager$1.run(ResourceSharingManager.java:456)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1975)
at com.ibm.team.filesystem.rcp.core.internal.resources.ResourceSharingManager.runWithinFileSystemLock(ResourceSharingManager.java:468)
at com.ibm.team.filesystem.client.internal.operations.FileSystemOperation.runWithinFileSystemLock(FileSystemOperation.java:173)
at com.ibm.team.filesystem.client.internal.operations.FileSystemOperation.runWithinFileSystemLock(FileSystemOperation.java:153)
at com.ibm.team.filesystem.client.internal.operations.LoadOperation.execute(LoadOperation.java:720)
at com.ibm.team.filesystem.client.internal.operations.FileSystemOperation.run(FileSystemOperation.java:90)
at com.ibm.team.filesystem.client.internal.operations.VerifySharesOperation.reloadOutOfSync(VerifySharesOperation.java:484)
at com.ibm.team.filesystem.client.internal.operations.VerifySharesOperation.handleOutOfSyncShares(VerifySharesOperation.java:455)
at com.ibm.team.filesystem.client.internal.operations.VerifySharesOperation.execute(VerifySharesOperation.java:254)
at com.ibm.team.filesystem.client.internal.operations.FileSystemOperation.run(FileSystemOperation.java:90)
at com.ibm.team.filesystem.client.internal.operations.WorkspaceUpdateOperation.execute(WorkspaceUpdateOperation.java:670)
at com.ibm.team.filesystem.client.internal.operations.FileSystemOperation.run(FileSystemOperation.java:90)
at com.ibm.team.filesystem.rcp.core.internal.changes.model.WorkspaceUpdateUtil.accept(WorkspaceUpdateUtil.java:68)
at com.ibm.team.filesystem.ui.actions.teamplace.AcceptAction$1$1$1.filesystemRun(AcceptAction.java:71)
at com.ibm.team.filesystem.ui.operations.FileSystemUIOperation.repositoryRun(FileSystemUIOperation.java:44)
at com.ibm.team.repository.rcp.ui.operations.RepositoryOperation.run(RepositoryOperation.java:42)
at com.ibm.team.repository.rcp.ui.operations.JobRunner.run(JobRunner.java:205)
at com.ibm.team.repository.rcp.ui.operations.JobRunner$1.run(JobRunner.java:62)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

Does anybody have an idea, how i can fix this?