M204.1037
M204.1037 Command requires single file
The current command may not be issued for a group. You must have a default file rather than a group to perform certain forms of the VIEW command, such as VIEW FPARMS, VIEW TABLES, VIEW FILE, VIEW DSIZE, and VIEW BSIZE.
Response: You can make a file the default by opening the file and issuing a VIEW command before opening other files, by using the DEFAULT command, or by using the IN filename clause before a VIEW command (for example, IN filename VIEW TABLES). 
Message attributes:
| RETCODEO=0 | Sets online return code | 
|---|---|
| RETCODEB=4 | Sets batch (single user) return code | 
| CLASS=E | Error class; the message can be suppressed with the X'04' bit setting of the MSGCTL parameter | 
| AUDITER | Writes the message with line type ER to the audit trail | 
| COUNT | Increments the error count (ERCNT) parameter |