"GET /%7Bnull%7D HTTP/1.1" 404 error

[jenniferfu]

After we dynamically upgrade SmartGWT to a new version, the table grid becomes empty. There are errors in Jetty request.log:
"GET /%7Bnull%7D HTTP/1.1" 404

What is the file we try to retrieve?

Meanwhile, there are errors in the Jetty log file:
com.google.gwt.core.client.JavaScriptException: (TypeError)
description: Unable to set property 'innerHTML' of undefined or null reference
number: -2146823281: Unable to set property 'innerHTML' of undefined or null reference

[Isomorphic]

You've wedged your project in some way, it's not really possible to tell how.

We'd recommend restarting Eclipse, restarting browsers and clearing browser caches from a blank page, and running a GWT compile.