Malformed or corrupted AST file: ‘Unable to load module "/Users/zhangyu/Library/Developer/Xcode/DerivedData/ModuleCache/11WVWISKX5HB9/Darwin.pcm": module file out of date‘
After modifying system headers, please delete the module cache at ‘/Users/zhangyu/Library/Developer/Xcode/DerivedData/ModuleCache/11WVWISKX5HB9‘
解决方法：clean project
Malformed or corrupted AST file:......module file out of date,布布扣,bubuko.com
Malformed or corrupted AST file:......module file out of date
原文：http://www.cnblogs.com/Hanasaka/p/3922539.html