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

 unable to open source file file_specification

    Facility: DEBUG, VMS Debugger

    Explanation: Source lines from the file file_specification cannot
    be displayed because the debugger was unable to open the source
    file (represented as file_specification). The accompanying RMS
    status message gives more information about the reasons for the
    source file not being opened.

    User Action: Examine the RMS status message to determine the
    reasons for the source file not being opened, and take the
    appropriate action based on that information.