Executing predefined step CreateAgentFromDescription throws ObjectNotFoundException

[catello01350]

CreateAgentFromDescription throws this exception:

EXCEPTION:org.cristalise.kernel.common.ObjectNotFoundException: IDL:org.cristalise.kernel/common/ObjectNotFoundException:1.0  Role '' does not exist
	at org.cristalise.storage.jooqdb.lookup.JooqLookupManager.getRolePath(JooqLookupManager.java:225)
	at org.cristalise.kernel.lifecycle.instance.predefined.CreateAgentFromDescription.runActivityLogic(CreateAgentFromDescription.java:108)
	at org.cristalise.kernel.lifecycle.instance.Activity.request(Activity.java:181)
	at org.cristalise.kernel.lifecycle.instance.Workflow.requestAction(Workflow.java:136)
	at org.cristalise.kernel.entity.ItemImplementation.delegatedAction(ItemImplementation.java:199)
	at org.cristalise.kernel.entity.ItemImplementation.requestAction(ItemImplementation.java:182)
	at org.cristalise.kernel.entity.TraceableEntity.requestAction(TraceableEntity.java:126)
	at org.cristalise.kernel.entity.ItemPOA._invoke(ItemPOA.java:177)
	at com.sun.corba.se.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:654)
	at com.sun.corba.se.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:205)
	at com.sun.corba.se.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1700)
	at com.sun.corba.se.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1558)
	at com.sun.corba.se.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java:940)
	at com.sun.corba.se.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:198)
	at com.sun.corba.se.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:712)
	at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.dispatch(SocketOrChannelConnectionImpl.java:474)
	at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.doWork(SocketOrChannelConnectionImpl.java:1237)
	at com.sun.corba.se.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:490)
	at com.sun.corba.se.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:519)