在我将UIVIew连接到我的代码后，它崩溃了，为什么？

Question

我按下CONTROL并将AppView.xib中的UIImageVIew和UILabel拖到名为＆＃34; AppVIew.h＆＃34;的代码文件中。在我连接两个UI小部件之前它运行正常，我想知道导致崩溃的原因。非常感谢您的回答。 @property

代码如下：

#import <UIKit/UIKit.h>
@interface AppView : UIView

@property (weak, nonatomic) IBOutlet UIImageView *icon;

@property (weak, nonatomic) IBOutlet UILabel *name;

+ (id)AppViewWithIcon:(NSString *)icon Name:(NSString *)name;
@end

#import "AppView.h"
@implementation AppView

+ (id)AppViewWithIcon:(NSString *)icon Name:(NSString *)name{
    AppView *view = [[NSBundle mainBundle] loadNibNamed:@"AppView" owner:nil options:nil][0];
    NSLog(@"%@",view);
    return view;

}

错误如下：

1.Thread 1:EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP,subcode=0X0)
2.2016-03-27 18:53:36.804 05-九宫格[4302:283744] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<NSObject 0x7fca52c1a1c0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key icon.'

*** First throw call stack:
(
0   CoreFoundation                      0x0000000101630d85 __exceptionPreprocess + 165
1   libobjc.A.dylib                     0x00000001010a4deb objc_exception_throw + 48
2   CoreFoundation                      0x00000001016309c9 -[NSException raise] + 9
3   Foundation                          0x0000000100c6f19b -[NSObject(NSKeyValueCoding) setValue:forKey:] + 288
4   UIKit                               0x0000000101db07fb -[UIRuntimeOutletConnection connect] + 109
5   CoreFoundation                      0x000000010156a890 -[NSArray makeObjectsPerformSelector:] + 224
6   UIKit                               0x0000000101daf1de -[UINib instantiateWithOwner:options:] + 1864
7   UIKit                               0x0000000101db1415 -[NSBundle(UINSBundleAdditions) loadNibNamed:owner:options:] + 223
8   05-九宫格                        0x0000000100ba1490 +[AppView AppViewWithIcon:Name:] + 160
9   05-九宫格                        0x0000000100ba0cae -[ViewController viewDidLoad] + 206
10  UIKit                               0x0000000101b81984 -[UIViewController loadViewIfRequired] + 1198
11  UIKit                               0x0000000101b81cd3 -[UIViewController view] + 27
12  UIKit                               0x0000000101a57fb4 -[UIWindow addRootViewControllerViewIfPossible] + 61
13  UIKit                               0x0000000101a5869d -[UIWindow _setHidden:forced:] + 282
14  UIKit                               0x0000000101a6a180 -[UIWindow makeKeyAndVisible] + 42
15  UIKit                               0x00000001019deed9 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 4131
16  UIKit                               0x00000001019e5568 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1769
17  UIKit                               0x00000001019e2714 -[UIApplication workspaceDidEndTransaction:] + 188
18  FrontBoardServices                  0x000000010444f8c8 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 24
19  FrontBoardServices                  0x000000010444f741 -[FBSSerialQueue _performNext] + 178
20  FrontBoardServices                  0x000000010444faca -[FBSSerialQueue _performNextFromRunLoopSource] + 45
21  CoreFoundation                      0x0000000101556301 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
22  CoreFoundation                      0x000000010154c22c __CFRunLoopDoSources0 + 556
23  CoreFoundation                      0x000000010154b6e3 __CFRunLoopRun + 867
24  CoreFoundation                      0x000000010154b0f8 CFRunLoopRunSpecific + 488
25  UIKit                               0x00000001019e1f21 -[UIApplication _run] + 402
26  UIKit                               0x00000001019e6f09 UIApplicationMain + 171
27  05-九宫格                        0x0000000100ba195f main + 111
28  libdyld.dylib                       0x0000000103e0a92d start + 1
29  ???                                 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

（lldb）

Answer 1

通过检查视图控制器检查器并引用任何可能与您所做出的插座以及UIView / UILabel相矛盾的插座，检查它们是否是故事板中已删除的任何先前插座。