API8028 when deploying process flow

I'm getting:
API8028: No signature is available for mapping MS_BLD_MPS_TO_STG because the generation language is undefined. Please set the generation language property of this mapping, or generate this mapping to set the generation language property to a default value.
when deploying process flow after having copied the database and process flows into a new project.
Any ideas?

This is a known bug from 10.2 and 11.1 that looks to have not been fixed by Oracle.
If you inspect the metadata tables in OWBSYS you will see the transitions existing from your source env but ones missing in the target env.
The issue arises when you remove and add transitions out of order in the source process flow (original in DEV), and why wouldn't you, especially if you have decided to add a new mapping.
I can't believe this bug still exists and in terms of a work around, delete all transitions in the source and re-point in order and that should make it fine for export and import into test, prod etc. You don't have to delete the operators, obviously if a mapping name changes delete the old one and pop the new one in.
Sorry I can't be more helpful, my current client has dropped process flows because of this.
Edited by: NSNO on May 6, 2010 9:51 AM

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    Amer

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