No matter what I've got selected in Interface Builder, the Inspector did apparently not register the selection and only showed "No selection".
I tried opening and closing files, restarting Xcode and even rebooting my Mac. No change! What the heck is going on?
Other projects work just fine. It's just this project...
See Question&Answers more detail:
os 与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…