Xcode 4 hangs at “Attaching to (app name)”

Question

I just upgraded to Xcode 4 and for some reason my app won\'t run in the simulator or iOS device. It was working perfectly in Xcode 3, but all of a sudden now when I press ru

Answer 1

For me, none of these has worked. I realized that my project had 2 info.plist files (with two different names, like info.plist and Project-info.plist), so XCode got confused. I just removed the incorrect plist file, and it worked!