Ojior,
Did you get the GWT Plugins to install?
Please note, the GWT SDK that ships with the latest Google Tooling is GWT 2.1.1.
MyEclipse for Spring generates code that utilizes the GWT 2.0.4 SDK.
We are working on GWT 2.1.x support in the 9.0 version of ME4S.
Once you have the plugins installed, please go to the Google workspace properties and update the SDK to point to an installation of the GWT 2.0.4 sdk and use that SDK on your projects if you are scaffolding a GWT front end.
Please let me know if you were able to get past the installation issue.
Thanks,
Jack