It looks like the answer is actually in the error message itself. You have two center elements where you are only allowed to have one.
If you want both panels there, you would need to contain the both in a single panel that is the sole center element. -- 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/-/r6dRdj037YoJ. 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.
