iOS App crashing before entering main() with Xcode 4.2 & iOS 5

Question

Background

After upgrading xcode4.1/ios4 to xcode4.2/ios5 I am experiencing crashes while the App is loading and before it even enters main().

Answer 1

I had similar problem with logic unit testing (running separate target without dependency on the main app in the iOS simulator), in my situation problem was in lldb, here is more details:
Logic unit tests crash