转自:http://wangjianlewo.blog.163.com/blog/static/176568051201301551234372/
好像是因为ios6中的xib有AutoLayout这个属性,默认为选中,然后运行在低于ios6.0的机器中,会崩溃,报
*** Terminating app due to uncaught exception 'NSInvalidUnarchiveOperationException', reason: 'Could not instantiate class named NSLayoutConstraint'
*** First throw call stack:这个异常。
只需将图片所选中部分,设为不选中即可
