Google App Engine 1.8.8

I'd like to setup a google app engine project. I created a JEE Java Web Project and added the google app engine facet. In the facet configuration I added the SDK. No errors or warnings are popping up. I then add a class with the @Api Annotation. The class does not compile, because he cannot find the @Api annotation. Only if I add all the google app engine SDK libs by hand, the code compiles. According to a Stackoverflow posting this should not be neccessary, Intellij will load all jars from the SDK by itself? (for reference: http://stackoverflow.com/questions/12381195/importing-google-app-engine-project-from-eclipse-into-intellij)