Ios 我怎样才能删除“；“用户定义的运行时属性”；在Xcode中，它们是什么？
在Xcode 5.0.2中，我创建了一个新的主细节应用程序，它在iPhone和iPad模拟器上运行良好 但是，在Xcode右侧面板的用户定义的运行时属性中，我意外地（三次）单击了一个加号并添加了“keyPath”条目（没有真正理解它们是什么）： 我怎样才能去掉它们？单击减号不会改变任何内容，在模拟器中运行现在会失败，原因是：Ios 我怎样才能删除“；“用户定义的运行时属性”；在Xcode中，它们是什么？,ios,xcode,attributes,xcode5,Ios,Xcode,Attributes,Xcode5,在Xcode 5.0.2中，我创建了一个新的主细节应用程序，它在iPhone和iPad模拟器上运行良好 但是，在Xcode右侧面板的用户定义的运行时属性中，我意外地（三次）单击了一个加号并添加了“keyPath”条目（没有真正理解它们是什么）： 我怎样才能去掉它们？单击减号不会改变任何内容，在模拟器中运行现在会失败，原因是： 2013-11-24 21:02:53.003 MDExample[23132:a0b] *** Terminating app due to uncaught exce
2013-11-24 21:02:53.003 MDExample[23132:a0b] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UITableView 0xab26000> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key keyPath.'
*** First throw call stack:
(
0 CoreFoundation 0x0173c5e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x014bf8b6 objc_exception_throw + 44
2 CoreFoundation 0x017cc6a1 -[NSException raise] + 17
3 Foundation 0x011809ee -[NSObject(NSKeyValueCoding) setValue:forUndefinedKey:] + 282
4 Foundation 0x010eccfb _NSSetUsingKeyValueSetter + 88
5 Foundation 0x010ec253 -[NSObject(NSKeyValueCoding) setValue:forKey:] + 267
6 UIKit 0x00297e0b -[UIView(CALayerDelegate) setValue:forKey:] + 168
7 Foundation 0x0114e70a -[NSObject(NSKeyValueCoding) setValue:forKeyPath:] + 412
8 UIKit 0x007aa0c5 -[UINibKeyValuePair apply] + 70
9 libobjc.A.dylib 0x014d17d2 -[NSObject performSelector:] + 62
10 CoreFoundation 0x01737b6a -[NSArray makeObjectsPerformSelector:] + 314
11 UIKit 0x004ce552 -[UINib instantiateWithOwner:options:] + 1389
12 UIKit 0x00340605 -[UIViewController _loadViewFromNibNamed:bundle:] + 280
13 UIKit 0x00340dad -[UIViewController loadView] + 302
14 UIKit 0x004e911e -[UITableViewController loadView] + 80
15 UIKit 0x003410ae -[UIViewController loadViewIfRequired] + 78
16 UIKit 0x003415b4 -[UIViewController view] + 35
17 UIKit 0x0036bca9 -[UINavigationController rotatingSnapshotViewForWindow:] + 52
18 UIKit 0x00695a60 -[UIClientRotationContext initWithClient:toOrientation:duration:andWindow:] + 420
19 UIKit 0x002712f2 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:isRotating:] + 1495
20 UIKit 0x00270d16 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:] + 82
21 UIKit 0x00270be8 -[UIWindow _setRotatableViewOrientation:updateStatusBar:duration:force:] + 117
22 UIKit 0x00270c70 -[UIWindow _setRotatableViewOrientation:duration:force:] + 67
23 UIKit 0x0026fd0a __57-[UIWindow _updateToInterfaceOrientation:duration:force:]_block_invoke + 120
24 UIKit 0x0026fc6c -[UIWindow _updateToInterfaceOrientation:duration:force:] + 400
25 UIKit 0x002709c3 -[UIWindow setAutorotates:forceUpdateInterfaceOrientation:] + 870
26 UIKit 0x00273fb6 -[UIWindow setDelegate:] + 449
27 UIKit 0x00345737 -[UIViewController _tryBecomeRootViewControllerInWindow:] + 180
28 UIKit 0x00269c1c -[UIWindow addRootViewControllerViewIfPossible] + 609
29 UIKit 0x00269d97 -[UIWindow _setHidden:forced:] + 312
30 UIKit 0x0026a02d -[UIWindow _orderFrontWithoutMakingKey] + 49
31 UIKit 0x0027489a -[UIWindow makeKeyAndVisible] + 65
32 UIKit 0x00227cd0 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1851
33 UIKit 0x0022c3a8 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 824
34 UIKit 0x0024087c -[UIApplication handleEvent:withNewEvent:] + 3447
35 UIKit 0x00240de9 -[UIApplication sendEvent:] + 85
36 UIKit 0x0022e025 _UIApplicationHandleEvent + 736
37 GraphicsServices 0x036932f6 _PurpleEventCallback + 776
38 GraphicsServices 0x03692e01 PurpleEventCallback + 46
39 CoreFoundation 0x016b7d65 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 53
40 CoreFoundation 0x016b7a9b __CFRunLoopDoSource1 + 523
41 CoreFoundation 0x016e277c __CFRunLoopRun + 2156
42 CoreFoundation 0x016e1ac3 CFRunLoopRunSpecific + 467
43 CoreFoundation 0x016e18db CFRunLoopRunInMode + 123
44 UIKit 0x0022badd -[UIApplication _run] + 840
45 UIKit 0x0022dd3b UIApplicationMain + 1225
46 MDExample 0x00003b3d main + 141
47 libdyld.dylib 0x01d78725 start + 0
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
2013-11-24 21:02:53.003 MDExample[23132:a0b]***由于未捕获的异常“NSUnknownKeyException”而终止应用程序，原因：“[setValue:forUndefinedKey:]：此类不符合密钥路径的键值编码。”
***第一次抛出调用堆栈：
(
0 CoreFoundation 0x0173c5e4例外预处理+180
1 libobjc.A.dylib 0x014bf8b6 objc_异常_抛出+44
2芯基础0x017cc6a1-[N异常升高]+17
3基金会0x011809EE-[NSbOuts]（NSKEY ValueCudid）SETValu: FununDealdKe::+ 282
4基金会0x010ECCFB·NSSESEUSEKEY值ESETER + 88
5基金会0x010EC253- [ NSObjices（NSKEY ValueCoDIN）SETValue:FordK::] + 267
6 UIKit 0x00297e0b-[UIView（CALayerDelegate）设置值：forKey:+168
7基金会0x0114E70A- [ NSObjices（NSKEY ValueCoDIN）设置值：FrKePosie:] + 412
8 UIKit 0x007aa0c5-[UINibKeyValuePair apply]+70
9 libobjc.A.dylib 0x014d17d2-[NSObject性能选择器：][62
10 CoreFoundation 0x01737b6a-[NSArray makeObjectsPerformSelector:+314
11 UIKit 0x004ce552-[UINib实例化所有者：选项：][1389
12 UIKit 0x00340605-[UIViewController\u loadViewFromNibNamed:bundle:][280
13 UIKit 0x00340dad-[UIViewController loadView]+302
14 UIKit 0x004e911e-[UITableViewController loadView]+80
15 UIKit 0x003410ae-[UIViewController loadViewIfRequired]+78
16 UIKit 0x003415b4-[UIViewController视图]+35
17 UIKit 0x0036bca9-[UINavigationController旋转窗口快照视图:+52
18 UIKit 0x00695a60-[UIClientRotationContext initWithClient:TooOrientation:duration:andWindow:+420
19 UIKit 0x002712f2-[UIWindow\u setRotatableClient:TooOrientation:updateStatusBar:duration:force:isRotating:+1495
20 UIKit 0x00270d16-[UIWindow\u setRotatableClient:TooOrientation:updateStatusBar:duration:force:+82
21 UIKit 0x00270be8-[UIWindow\u setRotatableViewOrientation:updateStatusBar:duration:force:+117
22 UIKit 0x00270c70-[UIWindow\u setRotatableViewOrientation:持续时间：强制:+67
23 UIKit 0x0026fd0a uu 57-[UIWindow updateToInterfaceOrientation:duration:force:][uBlock_invoke+120
24 UIKit 0x0026fc6c-[UIWindow\u updateToInterfaceOrientation:duration:force:+400
25 UIKit 0x002709c3-[UIWindow setAutorotates:forceUpdateInterfaceOrientation:+870
26 UIKit 0x00273fb6-[UIWindow setDelegate:+449
27 UIKit 0x00345737-[UIViewController\u TryBecomerootViewController窗口:+180
28 UIKit 0x00269c1c-[UIWindow AddRootViewControllerServiceWifPossible]+609
29 UIKit 0x00269d97-[UIWindow\u setHidden:forced:][312
30 UIKit 0x0026a02d-[UIWindow\u OrderFront不带制作键]+49
31 UIKit 0x0027489a-[UIWindow makeKeyAndVisible]+65
32 UIKit 0x002227CD0-[UIApplication\u CallInitializationDelegatesForRL:有效负载：挂起：][1851
33 UIKit 0x0022c3a8-[UIApplication-runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:+824
34 UIKit 0x0024087c-[UIApplication handleEvent:withNewEvent:][3447
35 UIKit 0x00240de9-[UIApplication sendEvent:+85
36 UIKit 0x0022e025 _UIApplicationHandleEvent+736
37图形服务0x036932f6 _PurpleEventCallback+776
38图形服务0x03692e01 PurpleEventCallback+46
39 CoreFoundation 0x016b7d65运行循环正在调用源1执行功能
40 CoreFoundation 0x016b7a9b\uu CFRunLoopDoSource1+523
41 CoreFoundation 0x016e277c\uuu CFRunLoopRun+2156
42 CoreFoundation 0x016e1ac3 CFRunLoopRunSpecific+467
43 CoreFoundation 0x016e18db CFRUNLOOPSRUNINMODE+123
44 UIKit 0x0022badd-[UIU应用程序运行]+840
45 UIKit 0x0022dd3b UIApplicationMain+1225
46 MD0x00003B3D干管+141示例
47 libdyld.dylib 0x01d78725开始+0
)
libc++abi.dylib:以NSException类型的未捕获异常终止
（lldb）
setValue: