使用transitionWithView时出现奇怪的异常

Question

我收到以下异常

setValue：forUndefinedKey：]：此类不是键值TableViewPrints的键值编码兼容。'

在这一行[self.view addSubview：MainVC.view];

我试图解决这个问题很长一段时间。从查看其他帖子和这样的错误，我得到了我与视图的定义冲突。我似乎已经分配了我想添加的视图。

这是我调用transitionWithView

的代码

import "loginVC.h"

@interface loginVC ()

@end

@implementation loginVC

@synthesize clockNo, loginButton, activityIndicator, version, xmlData, MainVC;

- (void) switchToMainView
{

    if (MainVC == nil)
    {

        UIViewController *MainView= [[UIViewController alloc] initWithNibName:@"LoadPrints" bundle:nil];

        self.MainVC = MainView;

    }


        [UIView transitionWithView:self.view
                      duration:0.5
                       options:UIViewAnimationOptionTransitionFlipFromRight |
                               UIViewAnimationOptionLayoutSubviews |
                               UIViewAnimationOptionAllowAnimatedContent
                    animations:^
    {
                 [self.view addSubview:MainVC.view];
                    }
                    completion:NULL];

}

这是我的头文件：

 import <UIKit/UIKit.h>

  import "ConsumeSoap.h"

  import "ParserDelegate.h"

  import "XMLNode.h"

  import "LoadPrint"


@interface loginVC : UIViewController <ConsumeSoapDelegate> {
    IBOutlet  UITextField                 *clockNo;
    IBOutlet  UIButton                    *loginButton;
    IBOutlet  UIActivityIndicatorView     *activityIndicator;
    IBOutlet  UILabel                     *version;
    UIViewController                             *MainVC;
}

@property (nonatomic, strong) UITextField              *clockNo;
@property (nonatomic, strong) UIButton                 *loginButton;
@property (nonatomic, strong) UIActivityIndicatorView  *activityIndicator;
@property (nonatomic, strong) UILabel                  *version;
@property (nonatomic, strong) XMLNode                  *xmlData;
@property (nonatomic, strong) UIViewController                *MainVC;

- (IBAction) backgroundClick:       (id) sender;
- (IBAction) loginClick;
- (void)     switchToMainView;

@end

提前感谢您的帮助。我花了一整天的时间试图解决这个问题。

这是我要打开的View的Header文件：

//LoadPrints.h
#import <UIKit/UIKit.h>
#import "ConsumeSoap.h"
#import "XMLNode.h"
#import "ParserDelegate.h"

@interface LoadPrints : UIViewController <ConsumeSoapDelegate,UITableViewDataSource,UITableViewDelegate>
{

    IBOutlet UINavigationBar *printsButton;

    IBOutlet UITableView *TableViewPrints;

    IBOutlet UIActivityIndicatorView *activityIndicator;

    NSMutableArray *listOfPrints;
    BOOL refreshingPrints;

}

@property (nonatomic, strong) XMLNode                  *xmlData;
@property (nonatomic, strong) NSString * argPrintNumber;

@end