Error when starting the build engine on ubuntu

Today i've tried to get the build engine working, following the Prelude-Tutorial on the help sites. When i run the jbe on the command-line, after 2 seconds excpetions are thrown, first few lines are:

2009-03-12 01:52:10 [Jazz-Erstellungsengine] Erstellungsschleife wird ausgefhrt...

2009-03-12 01:52:10 [Jazz-Erstellungsengine] Anforderung steht an...

2009-03-12 01:52:14 [Jazz-Erstellungsengine] Ausnahmebedingung in Erstellungsschleife: org.eclipse.emf.ecore.resource.Resource$IOWrappedException: The declaration for the entity "ContentType" must end with '>'.

com.ibm.team.repository.common.TeamRepositoryException: org.eclipse.emf.ecore.resource.Resource$IOWrappedException: The declaration for the entity "ContentType" must end with '>'.

	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

	at com.ibm.team.repository.transport.client.RemoteTeamService.getAppropriateException(RemoteTeamService.java:657)

	at com.ibm.team.repository.transport.client.RemoteTeamService.executeMethod(RemoteTeamService.java:476)

	at com.ibm.team.repository.transport.client.RemoteTeamService.invoke(RemoteTeamService.java:184)

	at com.ibm.team.repository.transport.client.ServiceInvocationHandler.invoke(ServiceInvocationHandler.java:43)

	at $Proxy0.describe(Unknown Source)

Any ideas? Thanks alot!