NSUnknownKeyException ios目标C [复制]

这个问题在这里已有答案：

• What does this mean? “'NSUnknownKeyException', reason: … this class is not key value coding-compliant for the key X” 65答案

我已经为我的ios应用程序创建了一个幻灯片抽屉..幻灯片抽屉工作正常...我在幻灯片抽屉中有几个按钮和一个文本框...问题是每当我尝试添加对按钮/文本框的引用时是在幻灯片抽屉里，我得到了NSUnknownKeyException ...我不知道如何解决这个问题，因为我在IO中很新...包括下面的代码......

SlideDrawer.h

#import <UIKit/UIKit.h>

@interface SlideDrawer : UIViewController
@property (strong, nonatomic) IBOutlet UIButton *home;
- (IBAction)homeclick:(id)sender;
@end

SlideDrawer.m

#import "SlideDrawer.h"
@interface SlideDrawer ()
@end
@implementation SlideDrawer
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
}

- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
 - (IBAction)homeclick:(id)sender {
}
@end

MainViewController.h

#import <UIKit/UIKit.h>

@interface mainViewController : UIViewController{
UIView *menuDrawer;
}

@property (readonly, nonatomic) UISwipeGestureRecognizer     *recognizer_open, *recognizer_close;
@property (readonly, nonatomic) int menuDrawerX, menuDrawerWidth;

-(void) handleSwipes:(UIGestureRecognizer *) sender;
-(void) drawerAnimation;

@end

MainViewController.m

#import "mainViewController.h"

@interface mainViewController ()

@end

@implementation mainViewController

@synthesize menuDrawerWidth, menuDrawerX,recognizer_open, recognizer_close;

 - (void)viewDidLoad {
    [super viewDidLoad];
    menuDrawer = [[[NSBundle mainBundle] loadNibNamed:@"SlideDrawer" owner:self options:nil]objectAtIndex:0];
    menuDrawer.backgroundColor= [UIColor colorWithRed:0.18 green:0.09 blue:0.29 alpha:1.0];
    menuDrawerWidth= self.view.frame.size.width * 0.80;
    int statusbarHeight= [UIApplication sharedApplication].statusBarFrame.size.height;
    menuDrawerX= self.view.frame.origin.x- menuDrawerWidth;
    menuDrawer.frame= CGRectMake(menuDrawerX,  menuDrawer.frame.origin.y+statusbarHeight, menuDrawerWidth, self.view.frame.size.height-statusbarHeight);
    // menuDrawer.backgroundColor=[UIColor colorWithRed:0.18 green:0.09 blue:0.29 alpha:1.0];
    recognizer_close= [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipes:)];
    recognizer_open= [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipes:)];
    recognizer_close.direction= UISwipeGestureRecognizerDirectionLeft;
    recognizer_open.direction= UISwipeGestureRecognizerDirectionRight;
    [self.view addGestureRecognizer:recognizer_open];
    [self.view addGestureRecognizer:recognizer_close];
    [self.view addSubview:menuDrawer];
}

- (void)didReceiveMemoryWarning {
     [super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
 }

 -(void) handleSwipes:(UIGestureRecognizer *) swipe{
     [self drawerAnimation];

}
-(void) drawerAnimation{
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDelegate:self];
    [UIView setAnimationDuration:-10];
    CGFloat new_x = 0;
    if(menuDrawer.frame.origin.x<self.view.frame.origin.x)
    {
        new_x= menuDrawer.frame.origin.x+menuDrawerWidth;
        UIBezierPath *shadowPath = [UIBezierPath bezierPathWithRect:menuDrawer.bounds];
        menuDrawer.layer.masksToBounds = NO;
        menuDrawer.layer.shadowColor = [UIColor blackColor].CGColor;
        menuDrawer.layer.shadowOffset = CGSizeMake(0.0f, 1.0f);
        menuDrawer.layer.shadowOpacity = 0.5f;
        menuDrawer.layer.shadowPath = shadowPath.CGPath;
        [self.view removeGestureRecognizer:recognizer_open];
        [self.view addGestureRecognizer:recognizer_close];
    }
    else{
        new_x= menuDrawer.frame.origin.x-menuDrawerWidth;
        UIBezierPath *shadowPath = [UIBezierPath bezierPathWithRect:menuDrawer.bounds];
        menuDrawer.layer.masksToBounds = NO;
        menuDrawer.layer.shadowColor = [UIColor blackColor].CGColor;
        menuDrawer.layer.shadowOffset = CGSizeMake(0.0f, 1.0f);
        menuDrawer.layer.shadowOpacity = 0.0f;
        menuDrawer.layer.shadowPath = shadowPath.CGPath;
        [self.view removeGestureRecognizer:recognizer_close];
        [self.view addGestureRecognizer:recognizer_open];
    } 
    menuDrawer.frame= CGRectMake(new_x, menuDrawer.frame.origin.y, menuDrawer.frame.size.width, menuDrawer.frame.size.height);
    [UIView commitAnimations];
 } 
 @end

EDIT

例外是main.m中的行

return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));

例外

2015-06-10 14：07：17.357 Xpressions [5939：1056267] Interface Builder文件中的未知类ViewController . 2015-06-10 14：07：17.367
Xpressions [5939：1056267] *由于未捕获的异常'NSUnknownKeyException'终止应用程序，原因：'[setValue：forUndefinedKey：]：此类不是密钥主页的密钥值编码兼容 . *第一次抛出调用堆栈：（0 CoreFoundation 0x0089e746 exceptionPreprocess 182 1 libobjc.A.dylib 0x00527a97 objc_exception_throw 44 2 CoreFoundation 0x0089e361 - [NSException raise] 17 3 Foundation 0x001a81ee - [NSObject（NSKeyValueCoding）setValue：forUndefinedKey：] 282 4 Foundation 0x00105608 _NSSetUsingKeyValueSetter 115 5基础0x0010558d - [NSObject（NSKeyValueCoding）setValue：forKey：] 267 6基础0x0013b016 - [NSObject（NSKeyValueCoding）setValue：forKeyPath：] 386 7 UIKit 0x00fa8672 - [UIRuntimeOutletConnection connect] 106 8 libobjc.A.dylib 0x0053d724 - [NSObject performSelector ：] 62 9 CoreFoundation 0x007d647c - [NSArray makeObjectsPerformSelector：] 316 10 UIKit 0x00fa7133 - [UINib instantiateWithOwner：options：] 1775 11 UIKit 0x00fa8fd2 - [NSBundle（UINSBundleAdditions）loadNibNamed：owner：options：] 180 12 Xpressions 0x000418cf - [mainViewController viewDidLoad] 175 13 UIKit 0x00dc1da4 - [UIViewController loadViewIfRequired] 771 14 UIKit 0x00dc2095 - [UIView控制器视图] 35 15 UIKit 0x00cb3e85 - [UIWindow addRootViewControllerViewIfPossible] 66 16 UIKit 0x00cb434c - [UIWindow _setHidden：forced：] 287 17 UIKit 0x00cb4648 - [UIWindow _orderFrontWithoutMakingKey] 49 18 UIKit 0x00cc29b6 - [UIWindow makeKeyAndVisible] 80 19 Xpressions 0x00043534 - [AppDelegate application中：didFinishLaunchingWithOptions：] 580 20的UIKit 0x00c56fd7 - [UIApplication的_handleDelegateCallbacksWithOptions：isSuspended：restoreState：] 287 21的UIKit 0x00c57dc1 - [UIApplication的_callInitializationDelegatesForMainScene：transitionContext：] 2938 22的UIKit 0x00c5b422 - [UIApplication的_runWithMainScene：transitionContext：完成：] 1639 23的UIKit 0x00c7493e __84- [UIApplication _handleApplicationActivationWithScene：transitionContext：completion：] _ block_invoke 59 24 UIKit 0x00c5a04a - [UIApplication workspaceDidEndTransaction：] 155 25 FrontBoardServices 0x03200c9e __37- [FBSWorkspace clientEndTransaction：] _ block_invoke_2 71 26 FrontBoardServices 0x0320072f __40- [FBSWor k-空间_performDelegateCallOut：] _ block_invoke 54个27 FrontBoardServices 0x03212d7c __31- [FBSSerialQueue performAsync：] _ block_invoke_2 30 28的CoreFoundation 0x007c0050 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK 16 29的CoreFoundation 0x007b5963 __CFRunLoopDoBlocks 195 30的CoreFoundation 0x007b57bb __CFRunLoopRun 2715 31的CoreFoundation 0x007b4a5b CFRunLoopRunSpecific 443 32的CoreFoundation 0x007b488b CFRunLoopRunInMode 123 33的UIKit 0x00c59a02 - [UIApplication的_run ] 571 34 UIKit 0x00c5d106 UIApplicationMain 1526 35 Xpressions 0x00043a0a main 138 36 libdyld.dylib 0x02c2aac9 start 1）libc abi.dylib：以NSException类型的未捕获异常终止