"_OBJC_CLASS_$_CALayer"问题解决

突然出现了这个"_OBJC_CLASS_$_CALayer"问题

解决方法:Make sure you also add the QuartzCore framework to your target. Just importing the header isn't enough.

也就是在你的Frameworks里面添加QuartzCore.framework

什么,不会添加,看下图。。


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