Error while importing mapping with Union Transformation

[ramanapasula]

Hello all,
I am trying to import a mapping from one folder to another .I am getting the following error.

<Error> : The INPUTFIELD (CASE_NUM11) of a port dependency does not refer to a valid Input or Input/Output port. ( transformation< Union > ).

Please give some advice on how solve the mystery

Thanks,
Venkata Ramana

 

[ArtieChoke]

Is the map valid?

"I think we're all Bozos on this bus!" - Firesign Theatre