Kepler

Error:
....blah blah blah....
Caused by: ptolemy.kernel.util.IllegalActionException: Could not find a port named 'output';
in .provenance_composite.Base IFR table
at ptolemy.kernel.Entity.clone(Entity.java:196)

Here are the steps to reproduce (with attached sample workflow):
1. open workflow
2. File->Export workflow as Archive (KAR)
3. Close workflow
4. File->Open Archive (KAR)

This is a snippet pulled from an actual TPC - so it's very important that it work.