iOS7崩溃 - [__NSPlaceholderDictionary initWithObjects [英] iOS7 crashing - [__NSPlaceholderDictionary initWithObjects
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问题描述
浏览我的iOS6应用程式，并尝试修复iOS7的一切。在我的应用程序我得到的错误：
Going through my iOS6 app and trying to fix everything for iOS7. Throughout my app I'm getting the error:
-[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0]
这是从此代码的堆栈跟踪：
Here is the stack trace from this code:
NSString *shareString = [NSString stringWithFormat:@"I ... %@", self.booking.venue.name];
NSArray *activityItems = [NSArray arrayWithObjects:shareString, nil];
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];
[self presentViewController:activityViewController animated:YES completion:nil];
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0]'
*** First throw call stack:
(
0 CoreFoundation 0x03bc45e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x032d38b6 objc_exception_throw + 44
2 CoreFoundation 0x03b8a536 -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] + 390
3 CoreFoundation 0x03bb8029 +[NSDictionary dictionaryWithObjects:forKeys:count:] + 73
4 UIKit 0x0141eea4 -[UIButton _intrinsicSizeWithinSize:] + 1255
5 UIKit 0x017ee81d -[UIView(UIConstraintBasedLayout) intrinsicContentSize] + 51
6 UIKit 0x017eeebf -[UIView(UIConstraintBasedLayout) _generateContentSizeConstraints] + 36
7 UIKit 0x017eeb50 -[UIView(UIConstraintBasedLayout) _updateContentSizeConstraints] + 511
8 UIKit 0x017f4e8f -[UIView(AdditionalLayoutSupport) updateConstraints] + 110
9 UIKit 0x0141dab7 -[UIButton updateConstraints] + 54
10 UIKit 0x017f4728 -[UIView(AdditionalLayoutSupport) _internalUpdateConstraintsIfNeededAccumulatingViewsNeedingSecondPass:] + 239
11 UIKit 0x017f48a6 -[UIView(AdditionalLayoutSupport) _updateConstraintsIfNeededAccumulatingViewsNeedingSecondPass:] + 122
12 UIKit 0x017f4827 __UIViewRecursionHelper + 40
13 CoreFoundation 0x03b65dc9 CFArrayApplyFunction + 57
14 UIKit 0x017f46cc -[UIView(AdditionalLayoutSupport) _internalUpdateConstraintsIfNeededAccumulatingViewsNeedingSecondPass:] + 147
15 UIKit 0x017f48a6 -[UIView(AdditionalLayoutSupport) _updateConstraintsIfNeededAccumulatingViewsNeedingSecondPass:] + 122
16 UIKit 0x017f4827 __UIViewRecursionHelper + 40
17 CoreFoundation 0x03b65dc9 CFArrayApplyFunction + 57
18 UIKit 0x017f46cc -[UIView(AdditionalLayoutSupport) _internalUpdateConstraintsIfNeededAccumulatingViewsNeedingSecondPass:] + 147
19 UIKit 0x017f48a6 -[UIView(AdditionalLayoutSupport) _updateConstraintsIfNeededAccumulatingViewsNeedingSecondPass:] + 122
20 UIKit 0x017f4827 __UIViewRecursionHelper + 40
21 CoreFoundation 0x03b65dc9 CFArrayApplyFunction + 57
22 UIKit 0x017f46cc -[UIView(AdditionalLayoutSupport) _internalUpdateConstraintsIfNeededAccumulatingViewsNeedingSecondPass:] + 147
23 UIKit 0x017f48a6 -[UIView(AdditionalLayoutSupport) _updateConstraintsIfNeededAccumulatingViewsNeedingSecondPass:] + 122
24 UIKit 0x017f4827 __UIViewRecursionHelper + 40
25 CoreFoundation 0x03b65dc9 CFArrayApplyFunction + 57
26 UIKit 0x017f46cc -[UIView(AdditionalLayoutSupport) _internalUpdateConstraintsIfNeededAccumulatingViewsNeedingSecondPass:] + 147
27 UIKit 0x017f48a6 -[UIView(AdditionalLayoutSupport) _updateConstraintsIfNeededAccumulatingViewsNeedingSecondPass:] + 122
28 UIKit 0x017e8f48 __62-[UIWindow(UIConstraintBasedLayout) updateConstraintsIfNeeded]_block_invoke + 43
29 Foundation 0x02e7a3ec -[NSISEngine withBehaviors:performModifications:] + 107
30 Foundation 0x02d0a145 -[NSISEngine withAutomaticOptimizationDisabled:] + 48
31 UIKit 0x017e8c60 -[UIWindow(UIConstraintBasedLayout) updateConstraintsIfNeeded] + 225
32 UIKit 0x017f4f06 -[UIView(AdditionalLayoutSupport) _updateConstraintsAtWindowLevelIfNeeded] + 85
33 UIKit 0x011ed6ef -[UIView(Hierarchy) layoutBelowIfNeeded] + 348
34 UIKit 0x018a3def -[_UIBackdropContentView backdropView:recursivelyUpdateMaskViewsForView:] + 56
35 UIKit 0x018a4240 -[_UIBackdropContentView didMoveToWindow] + 273
36 UIKit 0x011f5be7 -[UIView(Internal) _didMoveFromWindow:toWindow:] + 1689
37 UIKit 0x011f5847 -[UIView(Internal) _didMoveFromWindow:toWindow:] + 761
38 UIKit 0x011f5847 -[UIView(Internal) _didMoveFromWindow:toWindow:] + 761
39 UIKit 0x011f5847 -[UIView(Internal) _didMoveFromWindow:toWindow:] + 761
40 UIKit 0x011f5847 -[UIView(Internal) _didMoveFromWindow:toWindow:] + 761
41 UIKit 0x011ed070 __45-[UIView(Hierarchy) _postMovedFromSuperview:]_block_invoke + 162
42 UIKit 0x011ecef8 -[UIView(Hierarchy) _postMovedFromSuperview:] + 260
43 UIKit 0x011f8031 -[UIView(Internal) _addSubview:positioned:relativeTo:] + 1847
44 UIKit 0x011eb521 -[UIView(Hierarchy) addSubview:] + 56
45 UIKit 0x012861f8 -[UITransitionView transition:fromView:toView:removeFromView:] + 1205
46 UIKit 0x018add65 -[UIViewControllerBuiltinTransitionViewAnimator animateTransition:] + 463
47 UIKit 0x0153a37d __101-[UIWindowController transition:fromViewController:toViewController:target:didEndSelector:animation:]_block_invoke_2 + 1577
48 UIKit 0x011acd33 ___afterCACommitHandler_block_invoke + 15
49 UIKit 0x011accde _applyBlockToCFArrayCopiedToStack + 403
50 UIKit 0x011acb0a _afterCACommitHandler + 532
51 CoreFoundation 0x03b8c53e __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
52 CoreFoundation 0x03b8c48f __CFRunLoopDoObservers + 399
53 CoreFoundation 0x03b6a3b4 __CFRunLoopRun + 1076
54 CoreFoundation 0x03b69b33 CFRunLoopRunSpecific + 467
55 CoreFoundation 0x03b6994b CFRunLoopRunInMode + 123
56 GraphicsServices 0x04fbb9d7 GSEventRunModal + 192
57 GraphicsServices 0x04fbb7fe GSEventRun + 104
58 UIKit 0x0119094b UIApplicationMain + 1225
59 BottlesTonight 0x000030ad main + 141
60 libdyld.dylib 0x037b8725 start + 0
)
libc++abi.dylib: terminating with uncaught exception of type NSException
这个代码仍然在iOS6上完美工作，我没有看到任何错误。它在单击UIButton时发生，当单击Card.io以允许用户输入卡信息时也会发生。在iOS7上构建我的应用程序，但在iOS7 betas上运行iOS6应用程序之前，我仍然收到此错误，但在更多的地方。现在我为iOS7构建它的一些地方清理了自己，但这些仍然存在。任何帮助将不胜感激，这是所有之前提交的iOS7剩下的。
This code still works perfectly on iOS6, and I don't see anything wrong with it. It occurs when clicking a UIButton, this also occurs when clicking Card.io to allow users to enter card information. Prior to building my app on iOS7 but running the iOS6 app on iOS7 betas I still recieved this error but in more places. Now that I built it for iOS7 a few of the places cleared up themselves but these ones still remain. Any help would be greatly appreciated, this is all that remains prior to submitting for iOS7.
推荐答案
报告这个bug苹果： bugreport.apple.com 。除非你使用布局约束有什么问题，这是苹果代码中的一个错误。
Report this as a bug to Apple: bugreport.apple.com. Unless there's something very wrong with your usage of layout constraints, it's a bug in Apple's code.
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