Easytrieve A010 on GET after DO WHILE - missing STOP?

JOB INPUT NULL. I GET a card file in a DO WHILE NOT EOF loop, counters move, looks fine, then it dies on the GET with:

A010 INVALID FILE REFERENCE - DATAPRM

Feels like EOF related. Program never hits a STOP. Is that the problem?

Yep. With INPUT NULL, Easytrieve just cycles back to the JOB statement when it runs off the bottom. You hit EOF, leave the DO, cycle up, GET again after EOF, boom A010.

Put a STOP after you are done. Not optional.

Same trap every time someone ports a COBOL-style "main loop" into Easytrieve and forgets the automatic cycle.

STOP after the END-DO fixed it. Felt obvious once someone said it.