目标C:ARC错误(自动释放问题)

Question

可能重复:
Xcode 4 Final - 与armv6 libs链接时出现"armv6 armv7"问题

一切正常,直到我在运行iOS 4.3.3的实际手机上进行配置.我打开了自动引用,所以我不必担心发布任何内容,但也许我做错了,不发布的概念对我来说是新的.我收到这些错误:

Undefined symbols for architecture armv7:
"_objc_storeStrong", referenced from:
  -[AppDelegate .cxx_destruct] in AppDelegate.o
  -[DistanceViewController .cxx_destruct] in DistanceViewController.o
  -[SlopeViewController .cxx_destruct] in SlopeViewController.o
  -[MidpointViewController .cxx_destruct] in MidpointViewController.o
  -[AreaViewController .cxx_destruct] in AreaViewController.o
  -[PerimeterViewController .cxx_destruct] in PerimeterViewController.o
  -[VolumeViewController .cxx_destruct] in VolumeViewController.o
  ...
"_objc_retain", referenced from:
  +[__ARCLite__ load] in libarclite_iphoneos.a(arclite.o)
  -[AppDelegate application:didFinishLaunchingWithOptions:] in AppDelegate.o
  -[AppDelegate applicationWillResignActive:] in AppDelegate.o
  -[AppDelegate applicationDidEnterBackground:] in AppDelegate.o
  -[AppDelegate applicationWillEnterForeground:] in AppDelegate.o
  -[AppDelegate applicationDidBecomeActive:] in AppDelegate.o
  -[AppDelegate applicationWillTerminate:] in AppDelegate.o
  ...
 (maybe you meant: _objc_retainedObject)
"_objc_release", referenced from:
  _main in main.o
  -[AppDelegate application:didFinishLaunchingWithOptions:] in AppDelegate.o
  -[AppDelegate applicationWillResignActive:] in AppDelegate.o
  -[AppDelegate applicationDidEnterBackground:] in AppDelegate.o
  -[AppDelegate applicationWillEnterForeground:] in AppDelegate.o
  -[AppDelegate applicationDidBecomeActive:] in AppDelegate.o
  -[AppDelegate applicationWillTerminate:] in AppDelegate.o
  ...
"_objc_retainAutoreleasedReturnValue", referenced from:
  _main in main.o
  -[AppDelegate application:didFinishLaunchingWithOptions:] in AppDelegate.o
  -[ViewController alertView:clickedButtonAtIndex:] in ViewController.o
  -[ViewController viewDidLoad] in ViewController.o
  -[DistanceViewController done:] in DistanceViewController.o
  -[DistanceViewController solve:] in DistanceViewController.o
  -[DistanceViewController viewDidLoad] in DistanceViewController.o
  ...
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)