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xib连线问题

Terminating app due to uncaught exception ‘NSUnknownKeyException‘, reason: ‘[setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key backButton.‘

跳转问题，直接present到另一个ViewController上
Warning: Attempt to present on whose view is not in the window hierarchy!

IOS问题汇总：2015-1-14 xib连线问题

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原文地址：http://www.cnblogs.com/hanyutong/p/4427645.html