I had a similar issue last week. A project that compiled and ran fine on Windows and Linux failed to run in Development mode on my OSX 10.6.7 laptop. Perversely it also ran fine on an OSX 10.6.6 desktop.
I was getting "onModuleLoad() threw an exception", due to GWT.create failing to bind a class that *was* available and in the right place, whenever I tried to do a mvn gwt:run to launch the app. Picking through the logs in the Development mode app, it turned out that I was getting a NullPointer during GXT.init because it was unable to load the default theme. The fix turned out to be adding ThemeManager.register(Slate.SLATE); to onModuleLoad() and <inherits name="com.extjs.gxt.themes.Themes"/> to the foo.gwt.xml config. These 2 lines fixed the NullPointer, which in turn fixed the seemingly unrelated binding error. I didn't get to the bottom of why it failed for me and not any of the other machines. As the code is all in version control, it was not a project layout issue. The app also ran fine in production mode on the troubled laptop, so my guess is some kind of race condition with the Development mode app bootstrap. My only advice is to ramp up the GWT logging and that your problem may be be unrelated to the "Unable to find type 'sa.car.sa.fast.client.Main'" Oli -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.