Passing workflows created in Eclipse to Designer won't display in Designer.

Create a workflow that includes a human task in Eclipse using the jbpm plugin (can use the attached bpmn file). Add some onEntry event information (ie assigning "content" to a new HashMap) Then, add the workflow to Guvnor. Open Guvnor and try to view the workflow in Designer. The workflow shows up as blank. Tracing thru the code in designer, results in the following information: org.eclipse.emf.ecore.resource.Resource$IOWrappedException: Feature 'script' not found. (inputStream://dummyUriWithValidSuffix.xml, 35, 19) The exception comes from JbpmProfileImpl.getDefinitions(String).