CASCD1001S Error locating region directory for region region-name

An error occurred locating the region directory for region region-name. Either the region is not defined or environment variable TXDIR is pointing to the wrong place.
System Action:
The region start request is not processed.
Resolution:
Correct the setting of TXDIR, correct region-name, or define the region.
Module:
dfhrem
Destination:
standard out