GWT maven app not starting

I created a GWT app project using the gwt-maven-plugin and added the same to eclipse. Tried running it from eclipse (as a web application) however got the following errors (screenshot). Any ideas on why this would be happening?

Would like to mention that the app builds fine and when i manually deploy that war file in tomcat, the app works as expected. However running from eclipse causes issues.

Cross posted here

Add target/generated-sources/gwt to the Eclipse build path. This is not done automatically, unfortunately. This solved my problem. Source