应用程式适用于ios 4.3模拟器，但不适用于ios 5模拟器。 有任何想法吗？

Question

My app runs fine in the ios 4.3 simulator, but not the ios 5 simulator. I have ios 5 on my iPhone, and my app DOES work on the iPhone.

The app compiles fine in all of these three environments.

In the ios5 simulator, I get the following cryptic thread crash reports.

mig_get_reply_port appears to be the method call with a

0x935d5ef3 <+0012> test %eax,%eax

"EXC_BAD_ACCESS"

Is this a configuration issue?

 - #0   0x00000000 in <????> ()
   #1   0x935d5ef3 in mig_get_reply_port ()
   #2   0x935cf70c in mach_ports_lookup ()
   #3   0x01d4b124 in _xpc_domain_init_local ()
   #4   0x01d48eb1 in _libxpc_initializer ()
   #5   0x8feaa203 in __dyld__ZN16ImageLoaderMachO18doModInitFunctionsERKN11ImageLoader11LinkContextE
   ()
   #6   0x8fea9d68 in __dyld__ZN16ImageLoaderMachO16doInitializationERKN11ImageLoader11LinkContextE
   ()
   #7   0x8fea72c8 in __dyld__ZN11ImageLoader23recursiveInitializationERKNS_11LinkContextEjRNS_21InitializerTimingListE
   ()
   #8   0x8fea725e in __dyld__ZN11ImageLoader23recursiveInitializationERKNS_11LinkContextEjRNS_21InitializerTimingListE
   ()
   #9   0x8fea725e in __dyld__ZN11ImageLoader23recursiveInitializationERKNS_11LinkContextEjRNS_21InitializerTimingListE
   ()
   #10  0x8fea725e in __dyld__ZN11ImageLoader23recursiveInitializationERKNS_11LinkContextEjRNS_21InitializerTimingListE
   ()
   #11  0x8fea725e in __dyld__ZN11ImageLoader23recursiveInitializationERKNS_11LinkContextEjRNS_21InitializerTimingListE
   ()
   #12  0x8fea725e in __dyld__ZN11ImageLoader23recursiveInitializationERKNS_11LinkContextEjRNS_21InitializerTimingListE
   ()
   #13  0x8fea725e in __dyld__ZN11ImageLoader23recursiveInitializationERKNS_11LinkContextEjRNS_21InitializerTimingListE
   ()
   #14  0x8fea8268 in __dyld__ZN11ImageLoader15runInitializersERKNS_11LinkContextERNS_21InitializerTimingListE
   ()
   #15  0x8fe9c694 in __dyld__ZN4dyld24initializeMainExecutableEv ()
   #16  0x8fea0f99 in __dyld__ZN4dyld5_mainEPK12macho_headermiPPKcS5_S5_ ()
   #17  0x8fe9a2ef in __dyld__ZN13dyldbootstrap5startEPK12macho_headeriPPKclS2_ ()
   #18  0x8fe9a063 in __dyld__dyld_start ()

Thanks!

Answer 1

I believe this is a duplicate of questions asked earlier. Check out:

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

Application crashes on simulator 5.0 before reaching main.m

Also, this seems to indicate that this is ultimately a bug in the simulator:

http://www.openradar.me/10464051

Answer 2

Replacing libxml2 to libxml2.2.7.3 worked amongst the various solutions ! :)