我正在开发一个PhoneGap应用程序。应用程序本身似乎已经处理好了iOS 9，因为它仍在运行，但是向新Xcode的过渡引入了一个新的异常，这个异常在旧版本的Xcode下没有发生。
我收到以下异常文字：
2015-10-12 13:40:58.434 <AppName>[29769:897739] -[__NSDictionaryI length]: unrecognized selector sent to instance 0x7ff0295c95d0
2015-10-12 13:40:58.445 <AppName>[29769:897739] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSDictionaryI length]: unrecognized selector sent to instance 0x7ff0295c95d0'
*** First throw call stack:
(
0 CoreFoundation 0x000000010d24bf65 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x000000011061fdeb objc_exception_throw + 48
2 CoreFoundation 0x000000010d25458d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
3 CoreFoundation 0x000000010d1a1f7a ___forwarding___ + 970
4 CoreFoundation 0x000000010d1a1b28 _CF_forwarding_prep_0 + 120
5 UIKit 0x000000010d857011 -[UILabel _ensureBaselineMetricsReturningBounds] + 153
6 UIKit 0x000000010d85725e -[UILabel _firstBaselineOffsetFromTop] + 36
7 UIKit 0x000000010de7d0c3 -[UIView(AdditionalLayoutSupport) nsli_lowerAttribute:intoExpression:withCoefficient:forConstraint:onBehalfOfLayoutGuide:] + 1560
8 UIKit 0x000000010de7ca8f -[UIView(AdditionalLayoutSupport) nsli_lowerAttribute:intoExpression:withCoefficient:forConstraint:] + 74
9 Foundation 0x00000001101f3bd8 lower_1_attribute + 158
10 Foundation 0x00000001101f36ec -[NSLayoutConstraint _lowerIntoExpression:reportingConstantIsRounded:] + 102
11 Foundation 0x00000001101e98f1 -[NSLayoutConstraint _addToEngine:integralizationAdjustment:mutuallyExclusiveConstraints:] + 96
12 UIKit 0x000000010de79213 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 504
13 Foundation 0x00000001101f723a -[NSISEngine withBehaviors:performModifications:] + 155
14 UIKit 0x000000010de79637 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 58
15 UIKit 0x000000010de78fd3 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 646
16 UIKit 0x000000010de79640 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 67
17 UIKit 0x000000010de78d08 -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 242
18 UIKit 0x000000010de790fc __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 225
19 Foundation 0x00000001101f723a -[NSISEngine withBehaviors:performModifications:] + 155
20 UIKit 0x000000010de79637 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 58
21 UIKit 0x000000010de78fd3 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 646
22 UIKit 0x000000010de79640 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 67
23 UIKit 0x000000010de78d08 -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 242
24 UIKit 0x000000010d6b2fef -[UIScrollView _switchToLayoutEngine:] + 107
25 UIKit 0x000000010de790fc __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 225
26 Foundation 0x00000001101f723a -[NSISEngine withBehaviors:performModifications:] + 155
27 UIKit 0x000000010de79637 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 58
28 UIKit 0x000000010de78fd3 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 646
29 UIKit 0x000000010de79640 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 67
30 UIKit 0x000000010de78d08 -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 242
31 UIKit 0x000000010de790fc __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 225
32 Foundation 0x00000001101f723a -[NSISEngine withBehaviors:performModifications:] + 155
33 UIKit 0x000000010de79637 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 58
34 UIKit 0x000000010de78fd3 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 646
35 UIKit 0x000000010de79640 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 67
36 UIKit 0x000000010de78d08 -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 242
37 UIKit 0x000000010de790fc __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 225
38 Foundation 0x00000001101f723a -[NSISEngine withBehaviors:performModifications:] + 155
39 UIKit 0x000000010de79637 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 58
40 UIKit 0x000000010de78fd3 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 646
41 UIKit 0x000000010de79640 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 67
42 UIKit 0x000000010de78d08 -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 242
43 UIKit 0x000000010de790fc __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 225
44 Foundation 0x00000001101f723a -[NSISEngine withBehaviors:performModifications:] + 155
45 UIKit 0x000000010de79637 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 58
46 UIKit 0x000000010de78fd3 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 646
47 UIKit 0x000000010de79640 -[UIView(AdditionalLayoutSupport) _withAutomaticEngineOptimizationDisabledIfEngineExists:] + 67
48 UIKit 0x000000010de78d08 -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 242
49 UIKit 0x000000010d6980dc __45-[UIView(Hierarchy) _postMovedFromSuperview:]_block_invoke + 113
50 Foundation 0x00000001101f723a -[NSISEngine withBehaviors:performModifications:] + 155
51 UIKit 0x000000010d698024 -[UIView(Hierarchy) _postMovedFromSuperview:] + 575
52 UIKit 0x000000010d6a5ac3 -[UIView(Internal) _addSubview:positioned:relativeTo:] + 1967
53 UIKit 0x000000010d8e7695 -[_UIAlertControllerPresentationController presentationTransitionWillBegin] + 208
54 UIKit 0x000000010d75999c __71-[UIPresentationController _initViewHierarchyForPresentationSuperview:]_block_invoke + 2044
55 UIKit 0x000000010d7575c5 __56-[UIPresentationController runTransitionForCurrentState]_block_invoke + 309
56 UIKit 0x000000010d6044be _runAfterCACommitDeferredBlocks + 317
57 UIKit 0x000000010d6167ee _cleanUpAfterCAFlushAndRunDeferredBlocks + 95
58 UIKit 0x000000010d6224e6 _afterCACommitHandler + 90
59 CoreFoundation 0x000000010d1779d7 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
60 CoreFoundation 0x000000010d177947 __CFRunLoopDoObservers + 391
61 CoreFoundation 0x000000010d16d59b __CFRunLoopRun + 1147
62 CoreFoundation 0x000000010d16ce98 CFRunLoopRunSpecific + 488
63 GraphicsServices 0x0000000111d12ad2 GSEventRunModal + 161
64 UIKit 0x000000010d5f8676 UIApplicationMain + 171
65 <AppName> 0x000000010cd9c061 main + 65
66 libdyld.dylib 0x0000000110ff192d start + 1
67 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
查看代码，它显示以下内容作为异常的来源：
int main(int argc, char* argv[])
{
@autoreleasepool {
int retVal = UIApplicationMain(argc, argv, nil, @"AppDelegate");
return retVal;
}
}
来自UIApplicationMain()电话的例外情况。继堆栈跟踪之后，我将进入汇编代码，这似乎是Apple库。
我基本上确定代码问题与UIApplicationMain(）调用直接无关，并且可能是项目文件中的其他内容已被破坏，但我无法获得跟踪为了我的生命，这个错误。
如果我在Xcode 6.0或6.3（我尝试过的其他两个版本）中加载同一个项目，则此时不会抛出任何异常。即使是在iOS 9中测试的商店中已编译的应用程序似乎也没有这个问题。到目前为止，只有通过Xcode 7.0在调试模式下运行应用程序时才会出现问题。
Config.xml指定使用phonegap-version 3.5来构建它，但我已经尝试过最新版本的其他版本，并且所有版本都有这个问题。
我一直试图解决这个问题两天了，但我没有取得任何进展，因为我无法掌握可能出错的问题。我最终检查的一切似乎都很好，但这个错误从某个地方出现。我觉得这必须是某个地方配置错误的情况，所以它在Apple的代码中爆炸，无论错误配置的部分最终被使用，但我完全不知道什么。我很难过。有没有人有任何有用的信息可以帮助我？
更新：我终于找到了它。隐藏在调试输出中的是我忽略的一条线：
NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802
这导致我this question here on SO。事实证明，这是我问题的根本原因。这也解释了为什么应用程序在实际设备上的生产工作正常，以及为什么旧的Xcode很好。正在进行的Web请求是针对生产中的HTTPS进行的，但是用于开发的服务器是HTTP。因此，应用程序的生产版本很好，应用程序的开发版本在旧的Xcode（没有ATS）中很好，但针对新的iOS 9 Xcode编译的应用程序的开发版本抛出异常。
我正忙着查看调试输出中的大异常和其他一些主要项目，我错过了隐藏在其他项目之间的关键线。
答案 0 :(得分：3)
向新Xcode的过渡引入了新的异常
新版本的Xcode通常带有新的框架。并不是说Xcode本身导致了异常，而是之前允许你的代码执行的操作，但在最新版本的框架中引发异常。
从堆栈跟踪中可以清楚地看到，在自动布局系统正在执行其操作时发生异常。查看您的故事板，看看是否有任何需要解决的布局问题。另外，请查看控制台上的消息 - 通常有一条线索可以解释导致异常的原因。