Trace

I started GWT development few days ago and encounters these rather unfortunate stack trace error.

com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException: This application is out of date, please click the refresh button on your browser. ( Expecting version 6 from server, got 5.)

Upon further research, I have concluded that this stupid trace is due to current gwt-servlet.jar at WEB-INF\lib has different version than GWT SDK version that I use (e.g. I am using sample code for developing RPC connection while using the latest SDK version). In short, the problem is caused by different RPC Protocol Versions – my server application uses version 5 RPC while the client application uses RPC at version 6.

So I decided to upgrade my gwt-servlet.jar to version that match the client side. However, googling for the latest gwt-servlet.jar is a bit tiring and thus I resort to create a random gwt project and copy the gwt-servlet.jar over to the sample application WEB-INF\lib. No need to deal with slow internet connection in Indonesia

Refresh everything and re-run the application… done

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Tags: google, gwt, java, rpc, web toolkit

This entry was posted on Sunday, February 27th, 2011 at 19:16 and is filed under gwt, howto, java. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.