在xcode 7.3.1上一切正常，然后我不得不添加在xcode 8上受支持的braintree 3ds sdk。因此，我将代码迁移到xcode 8上，而不是xcode9。现在，在IOS下构建正常11，但在ios 11及更高版本上，应用程序在打开新的主屏幕之前崩溃。我是Ios的新手，请帮助。
它在此行崩溃：
let vc = storyboard?.instantiateViewController(withIdentifier: "KbNav") as! KabNavigationController
2018-08-30 12:25:52.730641+0500 Kab[2970:32711] *** Assertion failure in
-[_UINavigationBarVisualProviderModernIOS _contentViewFittingHeight],
/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-
3698.33.6/_UINavigationBarVisualProviderModernIOS.m:569
2018-08-30 12:25:52.769549+0500 Kab[2970:32711] *** Terminating app due
to uncaught exception 'NSInternalInconsistencyException', reason: 'Sigh.
Contentview size is zero.'
*** First throw call stack:
(
0 CoreFoundation 0x0000000115da712b __exceptionPreprocess + 171
1 libobjc.A.dylib 0x0000000114d50f41 objc_exception_throw + 48
2 CoreFoundation 0x0000000115dac2f2 +[NSException raise:format:arguments:] + 98
3 Foundation 0x00000001147f1d69 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 193
4 UIKit 0x00000001131382f5 -[_UINavigationBarVisualProviderModernIOS _contentViewFittingHeight] + 265
5 UIKit 0x0000000112eb65e0 -[UINavigationItem _desiredHeightForBarMetrics:defaultHeightBlock:] + 90
6 UIKit 0x000000011313afa1 -[_UINavigationBarVisualProviderModernIOS heightRangeFittingWidth:] + 412
7 UIKit 0x000000011264a0ed -[UINavigationBar _heightRangeForNavigationItem:fittingWidth:] + 210
8 UIKit 0x0000000112726a98 -[UINavigationController _intrinsicNavigationBarHeightRangeForViewController:] + 187
9 UIKit 0x00000001127269b6 -[UINavigationController _preferredHeightForHidingNavigationBarForViewController:] + 628
10 UIKit 0x000000011271688f -[UINavigationController _positionNavigationBarHidden:edge:initialOffset:] + 356
11 UIKit 0x0000000112716cf8 -[UINavigationController _positionNavigationBarHidden:edge:] + 388
12 UIKit 0x000000011271e555 -[UINavigationController loadView] + 243
13 UIKit 0x00000001126e105c -[UIViewController loadViewIfRequired] + 195
14 UIKit 0x00000001126e18b9 -[UIViewController view] + 27
15 Kab 0x000000010f00faea -[SlideNavigationController setEnableShadow:] + 74
16 Kab 0x000000010f00d494 -[SlideNavigationController setup] + 244
17 Kab 0x000000010f00d1d1 -[SlideNavigationController initWithCoder:] + 145
18 Kab 0x000000010f20e1d6 _T08Kab0A20NavigationControllerCACSgSo7NSCoderC5coder_tcfc + 214
19 Kab 0x000000010f20e29f _T08Kab0A20NavigationControllerCACSgSo7NSCoderC5coder_tcfcTo + 47
20 UIKit 0x00000001129ca4c8 -[UIClassSwapper initWithCoder:] + 246
21 UIKit 0x0000000112c1f109 UINibDecoderDecodeObjectForValue + 704
22 UIKit 0x0000000112c1ee3e -[UINibDecoder decodeObjectForKey:] + 89
23 UIKit 0x000000011264675a -[UINavigationBar initWithCoder:] + 753
24 UIKit 0x0000000112c1f109 UINibDecoderDecodeObjectForValue + 704
25 UIKit 0x0000000112c1ee3e -[UINibDecoder decodeObjectForKey:] + 89
26 UIKit 0x0000000112eb15f2 -[UINavigationItem initWithCoder:] + 1018
27 UIKit 0x0000000112c1f109 UINibDecoderDecodeObjectForValue + 704
28 UIKit 0x0000000112c1ee3e -[UINibDecoder decodeObjectForKey:] + 89
29 UIKit 0x00000001126dc053 -[UIViewController initWithCoder:] + 432
30 Kab 0x000000010f29a6a8 _T08Kab18HomeViewControllerCACSgSo7NSCoderC5coder_tcfc + 7704
31 Kab 0x000000010f29a77f _T08Kab18HomeViewControllerCACSgSo7NSCoderC5coder_tcfcTo + 47
32 UIKit 0x00000001129ca4c8 -[UIClassSwapper initWithCoder:] + 246
33 UIKit 0x0000000112c1f109 UINibDecoderDecodeObjectForValue + 704
34 UIKit 0x0000000112c1ee3e -[UINibDecoder decodeObjectForKey:] + 89
35 UIKit 0x00000001129ca194 -[UIRuntimeConnection initWithCoder:] + 178
36 UIKit 0x00000001129ca8d0 -[UIRuntimeEventConnection initWithCoder:] + 59
37 UIKit 0x0000000112c1f109 UINibDecoderDecodeObjectForValue + 704
38 UIKit 0x0000000112c1f2a7 UINibDecoderDecodeObjectForValue + 1118
39 UIKit 0x0000000112c1ee3e -[UINibDecoder decodeObjectForKey:] + 89
40 UIKit 0x00000001129c9391 -[UINib instantiateWithOwner:options:] + 1262
41 UIKit 0x0000000112e59fc2 -[UIStoryboard instantiateViewControllerWithIdentifier:] + 181
42 Kab 0x000000010f135a7b _T08Kabr24LaunchTourViewControllerC4skipyyXlF + 219
43 Kab 0x000000010f136118 _T08Kab24LaunchTourViewControllerC4skipyyXlFTo + 56
44 UIKit 0x000000011253a972 -[UIApplication sendAction:to:from:forEvent:] + 83
45 UIKit 0x00000001126b9c3c -[UIControl sendAction:to:forEvent:] + 67
46 UIKit 0x00000001126b9f59 -[UIControl _sendActionsForEvents:withEvent:] + 450
47 UIKit 0x00000001126b8e86 -[UIControl touchesEnded:withEvent:] + 618
48 UIKit 0x00000001125b0807 -[UIWindow _sendTouchesForEvent:] + 2807
49 UIKit 0x00000001125b1f2a -[UIWindow sendEvent:] + 4124
50 UIKit 0x0000000112555365 -[UIApplication sendEvent:] + 352
51 UIKit 0x0000000112ea1a1d __dispatchPreprocessedEventFromEventQueue + 2809
52 UIKit 0x0000000112ea4672 __handleEventQueueInternal + 5957
53 CoreFoundation 0x0000000115d4a101 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
54 CoreFoundation 0x0000000115de9f71 __CFRunLoopDoSource0 + 81
55 CoreFoundation 0x0000000115d2ea19 __CFRunLoopDoSources0 + 185
56 CoreFoundation 0x0000000115d2dfff __CFRunLoopRun + 1279
57 CoreFoundation 0x0000000115d2d889 CFRunLoopRunSpecific + 409
58 GraphicsServices 0x0000000118d049c6 GSEventRunModal + 62
59 UIKit 0x00000001125395d6 UIApplicationMain + 159
60 Kab 0x000000010f191137 main + 55
61 libdyld.dylib 0x0000000117112d81 start + 1
62 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
KbNavigationController
class KabNavigationController: SlideNavigationController {
var menuItems: [(id: String, image: String, text: String)] = []
override func viewDidLoad() {
self.leftMenu = self.storyboard?.instantiateViewController(withIdentifier: "MenuViewController")
navigationBar.barTintColor = Theme.DarkGray
navigationBar.tintColor = Theme.White
navigationBar.barStyle = UIBarStyle.black
// Popup Navigation Bar
STPopupNavigationBar.appearance().isHidden = true
}
}
答案 0 :(得分：0)
我已经搜索并调试了很多代码，请记住始终启用异常断点以准确触发导致崩溃的行。您可以从Exception Breakpoint in Xcode中学习它。我在这里https://github.com/aryaxt/iOS-Slide-Menu/issues/250找到了解决方案。
将这两行从设置功能移动到幻灯片菜单的viewWillLayoutSubviews。
nodemon