CRRDG7827E A z/OS Debugger session was initiated, but a debug engine compatible with requested protocol version version_number could not be located.
Ensure that the installed z/OS Debugger host components are compatible with this version of the client.

Explanation

A remote debug session was attempted with a host version of z/OS Debugger. However, the host version was not compatible with the client.

System action

The debug session does not start.

User response

Ensure that the preference for the debug engine path is either blank or points to a version of the z/OS debugger engine that is compatible with the client. Alternatively, install a version of the client that is compatible with the host version of z/OS debugger. For additional compatibility information, see IBM Developer for z Systems and Rational Developer for z Systems Backward/Forward compatibility.