The operand for operation EXCPT is not defined.
30
Cause . . . . . : The operand of the EXCEPT operation is an EXCEPT name, but there is no Exception Output Specification which has this name specified in the EXCEPT-Name entry (positions 30 - 39). The specification is ignored.
Recovery . . . : Specify the correct EXCEPT Name as the operand of the EXCEPT operation, or add an Exception Output Specification with this EXCEPT Name. Compile again.
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