I had a layout defined and then I went to extract data from a file and realized I need to change the name of a Redefine Set.  So I changed the redefine set, went to preview, clicked generate.  Then went to the Input/Outputs tab on the component and made sure my mappings were fine.  Tried to process the file and I get the error below.  I tried refreshing the component manually.  Still got the same error.  The only way I could get it to go away was to do delete the component completely and remap the outputs.