XCode 6项目在ios 7.1上的segue之后崩溃

我正在粘贴日志的一部分.

如果我停用autolayout,它运行没有任何问题.我尝试杀死视图控制器上的约束,但我没有区别……

2014-11-15 02:39:14.574 My Project[26240:607] Objective: {objective 0x79163360: <251:84> + <750:-1.42636e-07>*0x78f7c920.negError{id: 215} + <999:2>*0x78fdf120.negError{id: 1389} + <999:2>*0x78fdf230.negError{id: 1392} + <999:1>*_UILayoutGuide:0x78fdf0b0.Width{id: 1390} + <999:1>*_UILayoutGuide:0x78fdf190.Width{id: 1393}}
2014-11-15 02:39:14.578 My Project[26240:607] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException',reason: '<NSISEngine: 0x79186230>{ Rows:
    0x78fdf120.posErrorMarker{id: 1388} == 0 + 1*0x78fdf120.negError{id: 1389} + 1*_UILayoutGuide:0x78fdf0b0.Width{id: 1390}
    0x78fdf230.posErrorMarker{id: 1391} == 0 + 1*0x78fdf230.negError{id: 1392} + 1*_UILayoutGuide:0x78fdf190.Width{id: 1393}
    UILayoutContainerView:0x78f5e630.Height{id: 276} == 960 + 2*0x78f7a4f0.marker{id: 285} + 1*0x78f81890.marker{id: 293}
    UILayoutContainerView:0x78f5e630.Width{id: 273} == 640 + 2*0x78f7a490.marker{id: 282} + 1*0x78f81860.marker{id: 290}
    UILayoutContainerView:0x78f5e630.minX{id: 279} == 0 + 2*0x78f6e210.marker{id: 278} + 

.... blah blah blah

  Integralization Adjustments:
(none)

  Statistics:
    26 rows. Variable counts:
          1 ->   9
          2 ->  12
          3 ->   4
          5 ->   1
}: internal error.  Cannot find an outgoing row head for incoming head 0x78f7c920.negError{id: 215},which should never happen.'
*** First throw call stack:
(
    0   CoreFoundation                      0x002d91e4 __exceptionPreprocess + 180
    1   libobjc.A.dylib                     0x01a978e5 objc_exception_throw + 44
    2   CoreFoundation                      0x002d8fbb +[NSException raise:format:] + 139
    3   Foundation                          0x007a6079 -[NSISEngine minimizeConstantInObjectiveRowWithHead:] + 256
    4   Foundation                          0x007a5ee3 -[NSISEngine optimize] + 183
    5   Foundation                          0x0091a6d8 -[NSISEngine withBehaviors:performModifications:] + 183
    6   Foundation                          0x007aa3c5 -[NSISEngine withAutomaticOptimizationDisabled:] + 48
    7   UIKit                               0x00bdb830 -[UIView(Hierarchy) _postMovedFromSuperview:] + 313
    8   UIKit                               0x00bd9b0a __UIViewWasRemovedFromSuperview + 226
    9   UIKit                               0x00bd970a -[UIView(Hierarchy) removeFromSuperview] + 264
    10  UIKit                               0x00cbcb3b -[UINavigationController navigationTransitionView:didEndTransition:fromView:toView:] + 339
    11  UIKit                               0x00cb4963 __49-[UINavigationController _startCustomTransition:]_block_invoke + 206
    12  UIKit                               0x012c4810 -[_UIViewControllerTransitionContext completeTransition:] + 99
    13  UIKit                               0x00b6ec94 __53-[_UINavigationParallaxTransition animateTransition:]_block_invoke103 + 680
    14  UIKit                               0x00be1435 -[UIViewAnimationBlockDelegate _didEndBlockAnimation:finished:context:] + 306
    15  UIKit                               0x00bca6dc -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 267
    16  UIKit                               0x00bca9c8 -[UIViewAnimationState animationDidStop:finished:] + 80
    17  QuartzCore                          0x04a8abb4 _ZN2CA5Layer23run_animation_callbacksEPv + 304
    18  libdispatch.dylib                   0x0215d4d0 _dispatch_client_callout + 14
    19  libdispatch.dylib                   0x0214b726 _dispatch_main_queue_callback_4CF + 340
    20  CoreFoundation                      0x0033e43e __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 14
    21  CoreFoundation                      0x0027f5cb __CFRunLoopRun + 1963
    22  CoreFoundation                      0x0027e9d3 CFRunLoopRunSpecific + 467
    23  CoreFoundation                      0x0027e7eb CFRunLoopRunInMode + 123
    24  GraphicsServices                    0x03cf45ee GSEventRunModal + 192
    25  GraphicsServices                    0x03cf442b GSEventRun + 104
    26  UIKit                               0x00b7af9b UIApplicationMain + 1225
    27  My Project                         0x0014744e top_level_code + 78
    28  My Project                         0x0014748b main + 43
    29  libdyld.dylib                       0x023a16d9 start + 1
    30  ???                                 0x00000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException