symbol 'symbol_name' is not in the symbol table

    Facility: DEBUG, VMS Debugger

    Explanation: The debugger could not find the symbol '<symbol_
    name, !AC>' in its symbol table.

    User Action: The symbol may have been entered incorrectly, in
    which case the fix is to enter the symbol correctly. The other
    possibility is that the module the symbol is defined in has
    not been loaded into the debugger's symbol table; perform a SET
    MODULE of the appropriate module.