How do I add a cocoa touch static library as a subproject to an application project in Xcode 4 (4.5 in this case)?
I have seen lots of screenshots that show a full project nested inside another project. However, whenever I follow the tutorials I just get a single .xcodeproj file inside my project, not a whole project (with it’s own project and target etc).

I’ve tried to create a workspace too – but still no luck. What am I doing wrong? I’ve seen many questions on SO that seem to be similar but nothing that has helped me resolve this.
I had tried dragging in from Finder and it seemed to work for apps but not libs. @Eiko got it in the comments to another answer… It was because the project was open elsewhere at the time. If I goto File > Close Project (on the original library project in xcode) and then drag in from Finder it works.