You specified an invalid code address with the procedure descriptor. The code address must be a nontemporary label defined in a psect with the EXE or MIX attribute after its use with .PROCEDURE_ DESCRIPTOR. Error: The code address you specified as the second argument to the .PROCEDURE_DESCRIPTOR directive is invalid. User Action: The code address must be a non-temporary label defined in a psect with the EXE or NOMIX attribute. Check your source code.