Issues with running project in xcode5

I am receiving this error when trying to build my program now with Unity 4.2.1 and linking with Xcode5:

UnityException: Launching iOS project via Xcode4 failed. Check editor log for details.

Please help, not sure if there is an update or something Unity plans on coming out with in the future to fix these issues not everyone seems to be having it.

Any help thanks,

Nick

Build and Run is broken. See Mantas’ post here:

http://forum.unity3d.com/threads/150871-Recommended-Xcode-versions/page3