RNF2028

The File-Addition entry is not valid for this device; defaults to blank.

20

Cause . . . . . : The File-Addition entry (position 20) of a File Description specification is A, but the Device entry (positions 36-42) is not DISK. Defaults to blank.

Recovery . . . : Omit the File-Addition entry (position 20) or specify DISK (positions 36-42) for the Device entry. Compile again.