iOS/Xcode异常：reason: ‘Could not instantiate class named NSLayoutConstraint’
2012-09-25 11:14
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异常信息：Terminating app due to uncaught exception ‘NSInvalidUnarchiveOperationException’, reason: ‘Could not instantiate class named NSLayoutConstraint‘
具体场景：Xcode 4.5 选择iPhone、iPad 5.0/5.1 Simulator（模拟器）
解决办法：需要关闭storyboard或xib界面文件的Use Auto Layout 选项，这是因为Auto Layout特性是iOS 6 新增加的，在之前的 5.0/5.1 Simulator模拟器中不支持。
具体场景：Xcode 4.5 选择iPhone、iPad 5.0/5.1 Simulator（模拟器）
解决办法：需要关闭storyboard或xib界面文件的Use Auto Layout 选项，这是因为Auto Layout特性是iOS 6 新增加的，在之前的 5.0/5.1 Simulator模拟器中不支持。
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