CASRB0060E Failed to open catalog. Return code = return-code

During the import of resource definitions, a bad return code was detected while trying to open the catalog.
System Action:
Import continues, but FCT entries that specify data set name will not be checked against the catalog.
Resolution:
Check that the file "catalog.dat" exists in the project folder, and that it is not open to another process.
Module:
dfhrdtup
Destination:
Build tab