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 a similar issue. In my case the reason was that I changed the setting for Launch ( xcode -> product -> Edit Scheme) to Wait and forgot about it.
When I changed the setting back to Automatic, the app will launch as usual.