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 tried everything in rjstelling and MarkGranoff's posts to no avail. I can now reproducibly cause it to not happen by turning off Guard Malloc on my debug scheme. Guard Malloc on--crash, off--no crash. I never had the problem on the device only the simulator. I applied the fixes in the post above first so I don't know if this would have fixed the problem without those changes or not. Hope this helps someone else.