iOS 7崩溃:[NSConcreteMapTable assign:key:value:isNew:]

我在崩溃日志中找到了下一行:

[NSConcreteMapTable assign:key:value:isNew:]

此崩溃发生在iOS 7上,但不发生在iOS 8上.

在这一行之前的某个地方有对NSLayoutConstraint的调用:
– [NSLayoutConstraint _addLoweredExpression:toEngine:integralizationAdjustment:lastLoweredConstantWasRounded:mutualExclusiveConstraints:]
– [NSLayoutConstraint _addToEngine:integralizationAdjustment:mutualExclusiveConstraints:]
– [NSLayoutConstraint _addToEngine:]

你们认为这次崩溃与我设置的Storyboard布局约束有关吗?

Thread : Crashed: com.apple.main-thread
0  libobjc.A.dylib                0x3b46d626 objc_msgSend + 5
1  Foundation                     0x315da681 -[NSConcreteMapTable assign:key:value:isNew:] + 68
2  Foundation                     0x315da5fb -[NSConcreteMapTable setObject:forKey:] + 82
3  Foundation                     0x3161daf7 -[NSISEngine setRowWithHead:body:] + 30
4  Foundation                     0x316205d1 -[NSISEngine pivotToMakeBodyVar:newHeadOfRowWithHead:andDropRow:] + 388
5  Foundation                     0x3161e325 -[NSISEngine minimizeConstantInObjectiveRowWithHead:] + 236
6  Foundation                     0x31620d9f -[NSISEngine tryUsingArtificialVariableToAddConstraintWithMarker:rowBody:usingInfeasibilityHandlingBehavior:mutuallyExclusiveConstraints:] + 226
7  Foundation                     0x3161c5fd -[NSISEngine tryToAddConstraintWithMarker:expression:integralizationAdjustment:mutuallyExclusiveConstraints:] + 692
8  Foundation                     0x3161c23b -[NSLayoutConstraint _addLoweredExpression:toEngine:integralizationAdjustment:lastLoweredConstantWasRounded:mutuallyExclusiveConstraints:] + 286
9  Foundation                     0x31619f6d -[NSLayoutConstraint _addToEngine:integralizationAdjustment:mutuallyExclusiveConstraints:] + 232
10 Foundation                     0x316257ed -[NSLayoutConstraint _addToEngine:] + 28
11 UIKit                          0x335c2c55 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 332
12 Foundation                     0x31619b2b -[NSISEngine withBehaviors:performModifications:] + 210
13 UIKit                          0x335c2ad9 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 336
14 UIKit                          0x334cf20d -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 200
15 UIKit                          0x335c2bbb __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 178
16 Foundation                     0x31619b2b -[NSISEngine withBehaviors:performModifications:] + 210
17 UIKit                          0x335c2ad9 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 336
18 UIKit                          0x334cf20d -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 200
19 UIKit                          0x335c2bbb __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 178
20 Foundation                     0x31619b2b -[NSISEngine withBehaviors:performModifications:] + 210
21 UIKit                          0x335c2ad9 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 336
22 UIKit                          0x334cf20d -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 200
23 UIKit                          0x335c2bbb __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 178
24 Foundation                     0x31619b2b -[NSISEngine withBehaviors:performModifications:] + 210
25 UIKit                          0x335c2ad9 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 336
26 UIKit                          0x334cf20d -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 200
27 UIKit                          0x334cee33 __45-[UIView(Hierarchy) _postMovedFromSuperview:]_block_invoke + 82
28 Foundation                     0x31619b2b -[NSISEngine withBehaviors:performModifications:] + 210
29 UIKit                          0x334cecd3 -[UIView(Hierarchy) _postMovedFromSuperview:] + 298
30 UIKit                          0x334dba4f -[UIView(Internal) _addSubview:positioned:relativeTo:] + 1414
31 UIKit                          0x334db4bf -[UIView(Hierarchy) addSubview:] + 30
32 UIKit                          0x335bcdb7 -[UITransitionView transition:fromView:toView:removeFromView:] + 978
33 UIKit                          0x335fcf3f -[UITransitionView transition:fromView:toView:] + 30
34 UIKit                          0x335fcf15 -[UITransitionView transition:toView:] + 104
35 UIKit                          0x335fc03b -[UITabBarController transitionFromViewController:toViewController:transition:shouldSetSelected:] + 1106
36 UIKit                          0x335fbbdf -[UITabBarController transitionFromViewController:toViewController:] + 38
37 UIKit                          0x335fbab7 -[UITabBarController _setSelectedViewController:] + 258
38 UIKit                          0x336c5dd5 -[UITabBarController _tabBarItemClicked:] + 272
39 UIKit                          0x33505037 -[UIApplication sendAction:to:from:forEvent:] + 90
40 UIKit                          0x33504fd7 -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 30
41 UIKit                          0x336c5c8b -[UITabBar _sendAction:withEvent:] + 370
42 UIKit                          0x33505037 -[UIApplication sendAction:to:from:forEvent:] + 90
43 UIKit                          0x33504fd7 -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 30
44 UIKit                          0x33504fb1 -[UIControl sendAction:to:forEvent:] + 44
45 UIKit                          0x334f0717 -[UIControl _sendActionsForEvents:withEvent:] + 374
46 Foundation                     0x31693163 __NSFireDelayedPerform + 414
47 CoreFoundation                 0x30c7e167 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 14
48 CoreFoundation                 0x30c7dd7f __CFRunLoopDoTimer + 782
49 CoreFoundation                 0x30c7c11b __CFRunLoopRun + 1210
50 CoreFoundation                 0x30be6ebf CFRunLoopRunSpecific + 522
51 CoreFoundation                 0x30be6ca3 CFRunLoopRunInMode + 106
52 GraphicsServices               0x35aec663 GSEventRunModal + 138
53 UIKit                          0x3353314d UIApplicationMain + 1136

最佳答案 似乎你只使用iOS 8限制去故事板打开它在左上角你会看到一个带有阅读标记的小黄色图标按下它并搜索iOS8仅警告,如果你发现任何删除这些限制并重建你的申请.

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