2493563 - Internal error: factory method call with null resource

Some modifications have been made to a custom application and when trying to release the activity in NetWeaver Developer Studio(NWDS) you get error: Internal error: factory method call with null resource

Checking further the NWDS log(\nwds-<version>\eclipse\workspace\.metadata\.log)

Error: Activity not found!com.sap.cms.util.exception.CMSUnexpectedException: Internal error: factory method call with null resource

Caused by: com.tssap.dtr.client.lib.deltavlib.CommunicationException: Communication error [cause: Read timed out]
at com.tssap.dtr.client.lib.deltavlib.impl.DeltavCommand.uncheckedExecute(DeltavCommand.java:144)
at com.tssap.dtr.client.lib.deltavlib.impl.DeltavCommand.uncheckedExecute(DeltavCommand.java:167)
at com.tssap.dtr.client.lib.deltavlib.impl.DeltavCommand.execute(DeltavCommand.java:49)
at com.tssap.dtr.client.lib.deltavlib.impl.ActivityIntersectionReportImpl.fetchVersionSets(ActivityIntersectionReportImpl.java:49)
at com.tssap.dtr.client.lib.deltavlib.impl.ActivityIntersectionReportImpl.getPendingPredecessors(ActivityIntersectionReportImpl.java:127)
at com.tssap.dtr.client.lib.vfs.impl.VfsWorkspace.getPredecessors(VfsWorkspace.java:3311)
... 6 more
Caused by: java.net.SocketTimeoutException: Read timed out

SAP NetWeaver Developer Studio

SAP NetWeaver Release Independent

transport, nwdi, developer studio, change , KBA , BC-CTS-DTR , Design Time Repository , BC-DWB-JAV-COR , Core Frameworks , BC-DWB-JAV-DII , Development Infrastructure Integration , Problem