I want to group my projects, but this is not working. So I tried clicking on 'update folders', but now my project is 'generating sources'. Why is it 'generating sources'?? I've unchecked all 'generate sources' checkboxes I could find, and my build is giving a lot of compilation errors. So why is my project build by IntelliJ??? I don't want that at all: it's not possible for IntelliJ to do so.