Possible Duplicate:
Where did the Apache Derby Eclipse plug-in go?
I installed several Derby plugins for Eclipse in the Eclipse plugins folder e.g. org.apache.derby.core_10.2.2
, org.apache.derby.plugin.doc_1.1.0
and org.apache.derby.ui_1.1.0
I am doing this for a Java EE project. When I try to add the Apache Derby nature to this type of project, it gives the following error:
error adding derby jars to project :org.eclipse.ui.internal.workbenchwindow cannot be cast to org.eclipse.jface.window.ApplicationWindow
I'm using Eclipse Juno.