[2014-10-20]XCode6编译问题：fata…

fatal error: malformed or corrupted AST file: 'Unable to loadmodule"/Users/xxx/Library/Developer/Xcode/DerivedData/ModuleCache/XYZYIE6ZV0OP/Darwin.pcm":file not found' note: after modifying system headers, please deletethe module cache at'/Users/me/Library/Developer/Xcode/DerivedData/ModuleCache/XYZYIE6ZV0OP'1 error generated.

经过考察原来是XCode在捣鬼，解决方法很简单：

只需要清除继承数据文件夹即可。具体操作为：进入XCode的Window，选择Organizer->Projects，然后选择出现问题的project ，点击delete button删除Derived data.

重新编译项目，即可。