the target system has the wrong incarnation.

    Facility: DEBUG, VMS Debugger

    Explanation: After a network failure, the debugger has attempted
    to re-connect to the target system. However, the target systems
    incarnation value does not match the last known incarnation,
    therefore this debug session is no longer valid. This is most
    likely due to the target system rebooting.

    User Action: Start up the debugger and target system again from
    scratch.