I have tried and tried again but I couldn't make it work. I created a new project with a new module with a GWT facet and I wanted to add the gwt-user dependancy to it via the "Attach classes from repository" feature (Project structure->libraries->Attach classes from repository). No matter what I wrote in the "coordinates" box (I tried gwt, gwt-user, com.google.gwt, com.google.gwt:gwt-user, com.google.gwt:gwt-user:2.4.0 and various others) it would never find the library (found:0, showing:0). On the other hand, when I wrote hibernate (which I don't need) it found 163 matches :(. Maybe I configured something wrong. Thanks for your help.