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

I really find the answer for me :)

for me,

project setting -> your target -> build phases -> validate setting -> perform

and now the problem is gone.

:)

I hope someone it help