DFS1777I SC=08 NULL FEAT =`number` ; 1 IS ASSUMED

Explanation
 A null FEAT=number specification was
supplied on the DEV statement. A feature number between 1 and 10 must be provided.

System action
 FEAT=1 is assumed, and processing continues with the
next operand.

Programmer response
 Specify a valid FEAT=number,
and rerun the job.