CGContextSaveGState错误

Question

我正在开发iphone应用程序，它立刻开始向我显示错误，毫无例外，我真的害怕这个错误，任何人都可以告诉我为什么会这样吗？

<Error>: CGContextSaveGState: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context  and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update.

Answer 1

iOS 7中存在问题。这是Apple正在处理的已知问题。应该在下一个测试版中修复。