In WebLogic 12c Managed Server Does Not Start with error The server xxxx is in an incompatible state


Trying to start managed server using the node manager showing following error:

"The server xxxx is in an incompatible state"


Check that the instance is not running using ps -ef. If it is, use kill -9 <pid> to stop the running instance.

Remove the state file:

If the managed server name is “Server-Name” oacore_server1, then go to the managed server machine, delete the following:


<Server-Name>.state is the node manager file containing instance information and status.

After deleting this file, the managed server can be remotely started from the Admin Console.

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