signal arguments were incorrect, signal cannot be decoded

    Facility: DEBUG, VMS Debugger

    Explanation: The arguments which were passed as part of the
    signal in your program were incorrect. The debugger encountered
    an error in trying to analyze the signal arguments. The error is
    shown in the message following this message.

    User Action: Analyze the arguments passed to LIB$SIGNAL by your
    program, and correct the error.