我正在尝试将a UILabel与IBOutlet我班级中的创建链接起来.
我的应用程序崩溃,出现以下错误.这是什么意思？我该如何解决？
***由于未捕获的异常'NSUnknownKeyException'终止应用程序,原因:'[<UIViewController 0x6e36ae0> setValue:forUndefinedKey:]:此类不是密钥XXX的密钥值编码.
我正在创建登录以查看支持服务单.第一个视图是故障单视图,如果您未登录,则会将您推送到登录屏幕.但是我得到了这个:
支持[3209:18e03] *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LoginScreen的密钥值编码兼容.*
第一掷调用堆栈:(0x1f17012 0x1634e7e 0x1f9ffb1 0x10e1711 0x1062ec8 0x10629b7 0x108d428 0x7990cc 0x1648663 0x1f1245a 0x797bcf 0x65ce37 0x65d418 0x65d648 0x65d882 0x669235 0x8683d2 0x6664f3 0x666777 0x6667b7 0x9d1fe2 0x9c3ad9 0x65e422 0x2b15 0x65f753 0x65fb2f 0x661286 0x65fe3f 0x592910 0x592895 0x5926e5 0x1edfafe 0x1edfa3d 0x1ebd7c2 0x1ebcf44 0x1ebce1b 0x22aa7e3 0x22aa668 0x57c65c 0x1f0d 0x1e35)的libc + + abi.dylib:终止调用抛出异常
这是我的LoginScreen.m代码
#import "UIAlertView+error.h"
#import "LoginScreen.h"
#import "API.h"
#include <CommonCrypto/CommonDigest.h>
#define sayWhat @"REMOVEDFORSECURITY"
@implementation LoginScreen
-(void)viewDidLoad {
NSLog(@"Found me!");
[super viewDidLoad];
//focus on the username field /show keyboard
[fldUsername becomeFirstResponder];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{ …我正在开发一个简单的应用程序,当我点击注册用户时,应用程序将被终止.请帮我解决这个问题.
它说:
由于未捕获的异常'NSUnknownKeyException'而终止应用程序,原因:'[setValue:forUndefinedKey:]:此类不是键值CreditCardTextField的键值编码兼容.
这是更详细的错误:
015-06-04 22:42:57.661 ParseStarterProject [43853:4461316] Interface Builder文件中的未知类RegisterPageViewController.2015-06-04 22:42:57.712 ParseStarterProject [43853:4461316] *由于未捕获的异常'NSUnknownKeyException'终止应用程序,原因:'[setValue:forUndefinedKey:]:此类不是键值CreditCardTextField的键值编码兼容".*第一次抛出调用堆栈:(0 CoreFoundation 0x00000001106ccf35 exceptionPreprocess + 165 1 libobjc.A.dylib
0x000000011233ebb7 objc_exception_throw + 45 2 CoreFoundation
0x00000001106ccb79 - [NSException raise] + 9 3 Foundation
0x0000000110b6b7b3 - [NSObject(NSKeyValueCoding)setValue:forKey:] + 259 4 CoreFoundation 0x0000000110616e80 - [NSArray makeObjectsPerformSelector:] + 224 5 UIKit 0x000000011134bc7d - [UINib instantiateWithOwner:options:] + 1506 6
UIKit 0x00000001111aaf98 - [UIViewController _loadViewFromNibNamed:bundle:] + 242 7 UIKit 0x00000001111ab588 - [UIViewController loadView] + 109 8 UIKit
0x00000001111ab7f9 - [UIViewController loadViewIfRequired] + …