错误：此类不是关键值编码兼容的密钥密钥路径

UIStoryboard* sb = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil]; 
    UIViewController* vc = [sb instantiateViewControllerWithIdentifier:@"SettingsViewController"]; 
    [[self navigationController] pushViewController:vc animated:YES];

尝试从Storyboard中的NavigationController推送ViewController，并且不断收到此错误。错误：此类不是关键值编码兼容的密钥密钥路径

* Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<SettingsViewController 0x1f98f100> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key keyPath.' * First throw call stack: (0x31f4a3e7 0x39c3b963 0x31f4a0d5 0x327b87d9 0x327b4543 0x31ed08a5 0x33ef5e69 0x340e5b09 0x71aa3 0x33e1b31d 0x33e9dda9 0x32859657 0x31f1f857 0x31f1f503 0x31f1e177 0x31e9123d 0x31e910c9 0x35a6f33b 0x33dad2b9 0x6567d 0x3a068b20) libc++abi.dylib: terminate called throwing an exception

来源

2013-02-18 user2080841

相关：http://stackoverflow.com/questions/3088059/what-does-this-mean-nsunknownkeyexception-reason-this-class-is-not-key – jtbandes 2015-08-16 18:41:56

使用此&检查：

UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil]; 
SettingsViewController *myVC = (SettingsViewController *)[mainStoryboard instantiateViewControllerWithIdentifier:@"SettingsViewController"]; 
[self.navigationController pushViewController:myVC animated:YES];

来源

2013-02-18 03:53:12 Vishal

这是更好的代码，但不会解决问题。将vc声明为通用视图控制器是可以接受的，只要您不打算调用SettingsViewController上定义的任何方法即可。 – danh 2013-02-18 04:30:16