Question

有人可以帮帮我吗。我不确定当我尝试运行某些屏幕时，我得到的错误消息是什么意思。每当我尝试运行我的主菜单时，我都会得到这个，但如果我将指令viewcontroller作为初始场景运行，我就不会这样做。我在那个代码中看到它说的是一个关于高分的东西，所以我拿出了我在主菜单上显示我的高分的代码，它仍然在做这个。谁能告诉我这是什么样的？

太困惑了。谢谢。沉Hutah

2014-02-25 01:49:44.479 game[7914:70b] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<ViewController 0xa26de60> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key highScore.'
    *** First throw call stack:
(
    0   CoreFoundation                      0x017aa5e4 __exceptionPreprocess + 180


    1   libobjc.A.dylib                     0x0152d8b6 objc_exception_throw + 44
    2   CoreFoundation                      0x0183a6a1 -[NSException raise] + 17
    3   Foundation                          0x011ee9ee -[NSObject(NSKeyValueCoding) setValue:forUndefinedKey:] + 282
    4   Foundation                          0x0115acfb _NSSetUsingKeyValueSetter + 88
    5   Foundation                          0x0115a253 -[NSObject(NSKeyValueCoding) setValue:forKey:] + 267
    6   Foundation                          0x011bc70a -[NSObject(NSKeyValueCoding) setValue:forKeyPath:] + 412
    7   UIKit                               0x0053da15 -[UIRuntimeOutletConnection connect] + 106
    8   libobjc.A.dylib                     0x0153f7d2 -[NSObject performSelector:] + 62
    9   CoreFoundation                      0x017a5b6a -[NSArray makeObjectsPerformSelector:] + 314
    10  UIKit                               0x0053c56e -[UINib instantiateWithOwner:options:] + 1417
    11  UIKit                               0x003ae605 -[UIViewController _loadViewFromNibNamed:bundle:] + 280
    12  UIKit                               0x003aedad -[UIViewController loadView] + 302
    13  UIKit                               0x003af0ae -[UIViewController loadViewIfRequired] + 78
    14  UIKit                               0x003af5b4 -[UIViewController view] + 35
    15  UIKit                               0x002d79fd -[UIWindow addRootViewControllerViewIfPossible] + 66
    16  UIKit                               0x002d7d97 -[UIWindow _setHidden:forced:] + 312
    17  UIKit                               0x002d802d -[UIWindow _orderFrontWithoutMakingKey] + 49
    18  UIKit                               0x002e289a -[UIWindow makeKeyAndVisible] + 65
    19  UIKit                               0x00295cd0 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1851
    20  UIKit                               0x0029a3a8 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 824
    21  UIKit                               0x002ae87c -[UIApplication handleEvent:withNewEvent:] + 3447
    22  UIKit                               0x002aede9 -[UIApplication sendEvent:] + 85
    23  UIKit                               0x0029c025 _UIApplicationHandleEvent + 736
    24  GraphicsServices                    0x023362f6 _PurpleEventCallback + 776
    25  GraphicsServices                    0x02335e01 PurpleEventCallback + 46
    26  CoreFoundation                      0x01725d65 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 53
    27  CoreFoundation                      0x01725a9b __CFRunLoopDoSource1 + 523
    28  CoreFoundation                      0x0175077c __CFRunLoopRun + 2156
    29  CoreFoundation                      0x0174fac3 CFRunLoopRunSpecific + 467
    30  CoreFoundation                      0x0174f8db CFRunLoopRunInMode + 123
    31  UIKit                               0x00299add -[UIApplication _run] + 840
    32  UIKit                               0x0029bd3b UIApplicationMain + 1225
    33  game                                0x0000d6ed main + 141
    34  libdyld.dylib                       0x02c8a70d start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

Answer 1

错误可能是由于以下原因造成的：

您已将inccorect类指定给视图控制器。
该属性（在您的情况下为highScore）可能会从课程中删除，但仍然会挂在IB中。

确保您已正确完成上述操作。

这个调试信息是什么意思？

1 个答案: