ios – 致命错误：自预编译头文件以来,文件已被修改

检查了图像中显示的所有问题，但没有任何效果。

在xcode 5我得到这个问题

fatal error: file ‘/Applications/Xcode
2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIApplication.h’
has been modified since the precompiled header
‘/Users/administrator/Library/Developer/Xcode/DerivedData/ModuleCache/220IXKWL5NEDF/UIKit.pcm’
was built note: after modifying system headers,please delete the
module cache at
‘/Users/administrator/Library/Developer/Xcode/DerivedData/ModuleCache/220IXKWL5NEDF’
1 error generated.

可能是什么问题？任何帮助，我将不胜感激。

解决方法

>删除DerivedData在/ Library / Developer / Xcode / DerivedData /
>重置你的模拟器

退出xcode，然后再运行。