当我尝试将动画设置为＆＃39; push＆＃39;从具有导航控制器的视图控制器到没有一个的视图控制器或带有导航控制器的视图控制器，会弹出此错误。但是当我使用动画＆＃39; show＆＃39;或者＆＃39;显示细节＆＃39;他们工作得很好。我已经尝试过其他方法通过删除带有感叹号的插座segue来解决这个问题，但是我的插座没有任何符号出现....
2016-06-15 23:24:46.546 Travel_Log[667:9045] Failed to set (keyPath) user defined inspected property on (UITextField): [<UITextField 0x7fe6e3759b90> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key keyPath.
2016-06-15 23:24:49.922 Travel_Log[667:9045] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Pushing a navigation controller is not supported'
*** First throw call stack:
(
0 CoreFoundation 0x0000000105d35d85 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x0000000107d1edeb objc_exception_throw + 48
2 UIKit 0x00000001069858c9 __71-[UINavigationController pushViewController:transition:forceImmediate:]_block_invoke + 0
3 UIKit 0x0000000106984bf5 -[UINavigationController pushViewController:animated:] + 848
4 UIKit 0x0000000106f6fc44 __66-[UIStoryboardPushSegueTemplate newDefaultPerformHandlerForSegue:]_block_invoke + 1660
5 UIKit 0x0000000106ee9630 -[UIStoryboardSegueTemplate _performWithDestinationViewController:sender:] + 460
6 UIKit 0x0000000106ee9433 -[UIStoryboardSegueTemplate _perform:] + 82
7 UIKit 0x0000000106ee96f7 -[UIStoryboardSegueTemplate perform:] + 156
8 UIKit 0x00000001067a3a8d -[UIApplication sendAction:to:from:forEvent:] + 92
9 UIKit 0x0000000106916e67 -[UIControl sendAction:to:forEvent:] + 67
10 UIKit 0x0000000106917143 -[UIControl _sendActionsForEvents:withEvent:] + 327
11 UIKit 0x0000000106916263 -[UIControl touchesEnded:withEvent:] + 601
12 UIKit 0x000000010681699f -[UIWindow _sendTouchesForEvent:] + 835
13 UIKit 0x00000001068176d4 -[UIWindow sendEvent:] + 865
14 UIKit 0x00000001067c2dc6 -[UIApplication sendEvent:] + 263
15 UIKit 0x000000010679c553 _UIApplicationHandleEventQueue + 6660
16 CoreFoundation 0x0000000105c5b301 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
17 CoreFoundation 0x0000000105c5122c __CFRunLoopDoSources0 + 556
18 CoreFoundation 0x0000000105c506e3 __CFRunLoopRun + 867
19 CoreFoundation 0x0000000105c500f8 CFRunLoopRunSpecific + 488
20 GraphicsServices 0x000000010b683ad2 GSEventRunModal + 161
21 UIKit 0x00000001067a1f09 UIApplicationMain + 171
22 Travel_Log 0x0000000105ae8322 main + 114
23 libdyld.dylib 0x0000000109a4e92d start + 1
24 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)