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

 file not available

    Facility: DEBUG, VMS Debugger

    Explanation: The source file for the given program cannot be
    read.

    User Action: Change the protections on the source file, or use
    SET SOURCE to tell the Debugger where the source file really
    exists.