GAE/GWT SDK update nightmares
Each time I update the AppEngine/GWT SDK, I get troubles...here are some tips. Make sure .classpath has the following: <classpathentry kind="con" path="com.google.gwt.eclipse.core.GWT_CONTAINER"/> <classpathentry kind="con" path="com.google.appengine.eclipse.core.GAE_CONTAINER"/> If you're doing some unit testing, create a GAE_SDK variable that points to the updated SDK. You should have ( google documentation ). you can ignore the warning on these libs not present in the server (QuickFix on the warning) <classpathentry kind="var" path="GAE_SDK/lib/testing/appengine-testing.jar"/> <classpathentry kind="var" path="GAE_SDK/lib/impl/appengine-api-labs.jar"/> <classpathentry kind="var" path="GAE_SDK/lib/impl/appengine-api-stubs.jar"/> <classpathentry kind="var" path="GAE_SDK/lib/impl/appengine-api.jar"/>If Make sure jar in