symbolicatecrash with XCode 4.2 not symbolicating system symbols
The following solved the problem for me:
- Delete the folder ~/Library/Developer/Xcode/iOS DeviceSupport/5.0.1 (9A405)
- Reattach your iOS device and it will automatically import the correct symbols.
After that the crash reports could be symbolicated correctly. (to re-symbolicate a crash report, open the Organizer, click on 'Reveal in Finder' and delete the symbolicated version)
It looks like this is an acknowledged bug with Xcode 4.2 and iOS 5:
https://devforums.apple.com/message/578722
A new Xcode beta was released for Lion yesterday, does that work for you? I can't try it myself because it's not available for Snow Leopard yet.