yesterday I installed Xcode 4.4.
I\'m working on a project which needs to run on ios 4.1 upwards, supporting iOS device with camera. Until I installed Xcode 4.4 ever
I had same problem now I resolved it ..
Follow these step to sort out the problem.
Step:1 Go to xcode folder like this
Step2: Reach to folder xcode->DerivedData
Step3: Delete all folder inside of DerivedData
It will work for you Thanks