编译错误 compile error：
fatal error: file
'/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.0.sdk/System/Library/Frameworks/UIKit.framework/Headers/UITableViewCell.h' has been modified since the precompiled header was built
the answer of stackoverflow:
I had this exact same problem after applying the recent Xcode patch. I ended up deleting the DerivedData folder for my app at:
~/Library/Developer/Xcode/DerivedData/{project name + gobly-gook}
关于 this "~/Library/Developer/Xcode/DerivedData" directory
This directory contains built products and indexes for the project. It is OK to delete it because it only contains items generated by Xcode. Xcode will regenerate everything next time the project is opened.