Library /sys$common/syshlp/dbg$help.hlb DEBUG, Messages, SYMNOTFND  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 no symbols matching defined_symbol are defined

    Facility: DEBUG, VMS Debugger

    Explanation: You attempted to use the SHOW SYMBOL command to show
    a symbol that is not defined.

    User Action: Verify that the symbol is defined and reenter the
    command.