Hi, In my situation, with this error: Caused by: java.lang.RuntimeException: Server Error: null
The problem was that, I didn't set Application ID in App Engine properties, because I haven't deployed to server yet. But of course there probably can be many reasons of NullPointerException on the server-side... Kind regards -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/zVX_TDNCra8J. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
