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

 unable to set image image_name because it has no symbol table

    Facility: DEBUG, VMS Debugger

    Explanation: The image is linked with the /NODEBUG qualifier, so
    there is no symbol table.

    User Action: Relink the image with the /DEBUG qualifier.