Xcode crashes every time when it’s opening

After updating Xcode 7.0.1, I’m not able to open my workspace, every time it’s crashes. After reading all this text I understand it’s about flow layout of collection view, and some negative value. Let's say I don’t have chance to go back to Xcode 6. Does anyone has similar problem, or know how to fix this?

exception :

negative sizes are not supported in the flow layout

about my workspace :

using

• cocoapods
• storyboards
• auto layout (pure layout in some files)
• size classes not checked

OS OS X 10.11 (macosx10.11):

Here is the crash log :

XCODE VERSION INFO:

Version = 7.0.1 (7A1001) Plugin Version = 8191 Beta Version = 0 OS Version = 10.10.5 (14F27)

ASSERTION:

Failed to determine the values for ibLayoutInset, intrinsicContentSize, baselineOffsetFromBottom, firstBaselineOffsetFromTop, ibLayoutMargins, ibContentSize, ibCellFrames, ibSectionHeaderViewFrames, ibSectionFooterViewFrames, and ibBackgroundViewFrame of IBUICollectionView.

Exception name: NSInternalInconsistencyException Exception reason: negative sizes are not supported in the flow layout Exception backtrace: 0. CoreFoundation 0x00000001033d5f4d __exceptionPreprocess 1. libobjc.A.dylib 0x0000000102e4fdeb objc_exception_throw

2. CoreFoundation 0x00000001033d5dca +[NSExceptionraise:format:arguments:]

3. Foundation 0x0000000102a9dae2 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:]

4. UIKit 0x00000001010db6ff -[UICollectionViewFlowLayout _getSizingInfos]

5. UIKit 0x00000001010dcef5 -[UICollectionViewFlowLayout _fetchItemsInfoForRect:]
6. UIKit 0x00000001010d669d -[UICollectionViewFlowLayout prepareLayout]
7. UIKit 0x00000001010f6ef1 -[UICollectionViewData _prepareToLoadData]
8. UIKit 0x00000001010f767a -[UICollectionViewData validateLayoutInRect:]

9. UIKit 0x00000001010a883e -[UICollectionView layoutSubviews]

   10. UIKit 0x000000010094911c -[UIView(CALayerDelegate) layoutSublayersOfLayer:]
   11. QuartzCore 0x00000001028bd36a -[CALayer layoutSublayers]
   12. QuartzCore 0x00000001028b1bd0 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE
   13. UIKit 0x0000000100938d7b -[UIView(Hierarchy) layoutBelowIfNeeded]
   14. IBCocoaTouchToolFoundation 0x00000001007c6920 -[UIView(IBCocoaTouchToolIntegration) awakeAfterMarshallerDidEstablishRelationshipsWithContext:populatingWarningMessages:]
   15. IBCocoaTouchToolFoundation 0x00000001007e72ab -[IBCocoaTouchToolObjectPackage initWithRequest:globalMarshallingContext:]
   16. IBCocoaTouchToolFoundation 0x00000001007e4533 +[IBCocoaTouchToolObjectPackage objectPackageFromRequest:]
   17. IBCocoaTouchToolFoundation 0x00000001007c321e -[IBCocoaTouchTool _objectFromRequest:]
   18. IBCocoaTouchToolFoundation 0x00000001007c361e -[IBCocoaTouchTool valuesForKeyPaths:ofMarshalledObjectRequest:resultMarshallerClassNames:resultMarshallerContexts:]
   19. IBFoundation 0x00000001026cc54f __80-[IBMessageReceiveChannel deliverMessage:toTarget:withArguments:context:result:]_block_invoke
   20. IBFoundation 0x00000001026cc25f -[IBMessageReceiveChannel deliverMessage:toTarget:withArguments:context:result:]
   21. IBFoundation 0x00000001026cbf58 __88-[IBMessageReceiveChannel runBlockingReceiveLoopNotifyingQueue:notifyingTarget:context:]_block_invoke
   22. libdispatch.dylib 0x00000001070ad4a7 _dispatch_client_callout
   23. libdispatch.dylib 0x0000000107098f9b _dispatch_barrier_sync_f_slow_invoke
   24. libdispatch.dylib 0x00000001070ad4a7 _dispatch_client_callout
   25. libdispatch.dylib 0x0000000107097fc9 _dispatch_main_queue_callback_4CF
   26. CoreFoundation 0x00000001033363e9 CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE
   27. CoreFoundation 0x00000001032f7939 __CFRunLoopRun
   28. CoreFoundation 0x00000001032f6e98 CFRunLoopRunSpecific
   29. Foundation 0x0000000102a3d891 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
   30. IBFoundation 0x00000001026a9c94 -[IBAbstractPlatformTool startServingReceiveChannel:]
   31. IBFoundation 0x00000001026a9e70 -[IBAbstractPlatformTool startServingWriteDescriptor:readDescriptor:]
   32. IBFoundation 0x00000001026aa97a +[IBAbstractPlatformTool main]
   33. ??? 0x0000000100743bc7 ???
   34. libdyld.dylib 0x00000001070dc92d start Exception info:{ }

   EXCEPTION :

negative sizes are not supported in the flow layout

EXCEPTION BACKTRACE

1. CoreFoundation 0x00000001033d5f4d __exceptionPreprocess
2. libobjc.A.dylib 0x0000000102e4fdeb objc_exception_throw
3. CoreFoundation 0x00000001033d5dca +[NSException raise:format:arguments:]
4. Foundation 0x0000000102a9dae2 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:]
5. UIKit 0x00000001010db6ff -[UICollectionViewFlowLayout _getSizingInfos]
6. UIKit 0x00000001010dcef5 -[UICollectionViewFlowLayout _fetchItemsInfoForRect:]
7. UIKit 0x00000001010d669d -[UICollectionViewFlowLayout prepareLayout]
8. UIKit 0x00000001010f6ef1 -[UICollectionViewData _prepareToLoadData]
9. UIKit 0x00000001010f767a -[UICollectionViewData validateLayoutInRect:]
10. UIKit 0x00000001010a883e -[UICollectionView layoutSubviews]
    10. UIKit 0x000000010094911c -[UIView(CALayerDelegate) layoutSublayersOfLayer:]
    11. QuartzCore 0x00000001028bd36a -[CALayer layoutSublayers]
    12. QuartzCore 0x00000001028b1bd0 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE
    13. UIKit 0x0000000100938d7b -[UIView(Hierarchy) layoutBelowIfNeeded]
    14. IBCocoaTouchToolFoundation 0x00000001007c6920 -[UIView(IBCocoaTouchToolIntegration) awakeAfterMarshallerDidEstablishRelationshipsWithContext:populatingWarningMessages:]
    15. IBCocoaTouchToolFoundation 0x00000001007e72ab -[IBCocoaTouchToolObjectPackage initWithRequest:globalMarshallingContext:]
    16. IBCocoaTouchToolFoundation 0x00000001007e4533 +[IBCocoaTouchToolObjectPackage objectPackageFromRequest:]
    17. IBCocoaTouchToolFoundation 0x00000001007c321e -[IBCocoaTouchTool _objectFromRequest:]
    18. IBCocoaTouchToolFoundation 0x00000001007c361e -[IBCocoaTouchTool valuesForKeyPaths:ofMarshalledObjectRequest:resultMarshallerClassNames:resultMarshallerContexts:]
    19. IBFoundation 0x00000001026cc54f __80-[IBMessageReceiveChannel deliverMessage:toTarget:withArguments:context:result:]_block_invoke
    20. IBFoundation 0x00000001026cc25f -[IBMessageReceiveChannel deliverMessage:toTarget:withArguments:context:result:]
    21. IBFoundation 0x00000001026cbf58 __88-[IBMessageReceiveChannel runBlockingReceiveLoopNotifyingQueue:notifyingTarget:context:]_block_invoke
    22. libdispatch.dylib 0x00000001070ad4a7 _dispatch_client_callout
    23. libdispatch.dylib 0x0000000107098f9b _dispatch_barrier_sync_f_slow_invoke
    24. libdispatch.dylib 0x00000001070ad4a7 _dispatch_client_callout
    25. libdispatch.dylib 0x0000000107097fc9 _dispatch_main_queue_callback_4CF
    26. CoreFoundation 0x00000001033363e9 CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE
    27. CoreFoundation 0x00000001032f7939 __CFRunLoopRun
    28. CoreFoundation 0x00000001032f6e98 CFRunLoopRunSpecific
    29. Foundation 0x0000000102a3d891 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
    30. IBFoundation 0x00000001026a9c94 -[IBAbstractPlatformTool startServingReceiveChannel:]
    31. IBFoundation 0x00000001026a9e70 -[IBAbstractPlatformTool startServingWriteDescriptor:readDescriptor:]
    32. IBFoundation 0x00000001026aa97a +[IBAbstractPlatformTool main]
    33. ??? 0x0000000100743bc7 ???
    34. libdyld.dylib 0x00000001070dc92d start

Go into the storyboard or nib that has the negative value and modify the xml?