Weblogic : The server is in an incompatible state

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Posted on October 19, 2016

The solution is to delete the “managed_server.state” file under your domain in “servers/managed_server/data/nodemanager/” where managed_server is your managed server’s name.
Stop weblogic and the nodemanager

start weblogic followed by the nodemanager. Then restart the manage servers

Reference : http://ruleoftech.com/2014/weblogic-12c-and-managed-server-in-incompatible-state
Reference bug http://www.munzandmore.com/2013/ora/weblogic-12-1-2-nodemanager-bug