Executed "web gwt setup" on a project yields errors for all domain objects:

GWT support requires that a proxied entity has an @Version field accessor method for type <my-domain-class>

I tried building a new project with the same database reverse engineer, did not manually alter anything, and got the same error. Original project worked great until trying to add the GWT Add-On. Browser shows only a blue box with "loading..." after executing "mvn gwt:run"

Attached my Roo console output.

Using 1.1.3.RELEASE [rev 4404ffb] inside STS 2.6.0.RELEASE Build Id: 201103161000.