1 > First Close the eclipse .
2 > Go to your Eclipse Project Directory
3 > Inside .metadata->plugins-> Delete 2 files
4 > Restart eclipse
5 > you can see in project explore folder name server and delete it.
6 > Add the server again in eclipse
7 > Window -> Preferences ->Server ->RuntimeEnvironment->Add ->
select one Tomcat server which you have installed in your local machine ->
Browse the directory of you installed Tomcat Server>Finish.
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