Re: Odd IncompatibleRemoteServiceException

An IncompatibleRemoteServiceException is thrown when you have an old gwt-servlet.jar in your WEB-INF/lib folder. 

Your client speaks version 7 while your server only understands (and expects) version 5. Just copy the correct GWT 2.1 gwt-servlet.jar into your WEB-INF/lib folder.

Regarding your hosted mode file, have you tried to rename <your war folder>/<your app folder> so GWT has to regenerate it?

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