target system image file_specification not found on host system.

    Facility: DEBUG, VMS Debugger

    Explanation: An image that is loaded on the target system does
    not have a matching copy on the host system. The debugger can not
    load any information about this image, therefore, debugging code
    in the image is impossible.

    User Action: Check the the image search path on the host system
    for this image. Either fix the search path or place a copy of
    this image in that path and restart the debug session.