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

 no such task exists or no task satisfies criteria

    Facility: DEBUG, VMS Debugger

    Explanation: The user entered a task expression that does not
    correspond to an existing task, or no existing task satisfies the
    task expression.

    User Action: Reenter the command with a task expression that
    specifies an existing task.