As a good newbie, I started by googling but could not find an answer to my problem. However I doubt I am the only one. I installed QTCreator 2.0.0 using the Nokia QT SDK. I tested a few examples and everything works fine. Then I create a new project with QWidget windows. In Design, I add a lineEdit, a Label and a pushbutton. Build/Run everything is ok. Than use the "Go to slot" menu on the pushbutton and select clicked(). QTCreator returns a error "ui_xxx.h" not found. If I display the generated files in the project window, I discover that the ui_xxx.h is created in the "simulator folder" and not in my project folder. This sounds to me like a bug in QTCreator or like a stupid mistake from my part. Any help will be appreciated.