get error messages when build with xcode:
mkdir: /Users/xxx/Library/Developer/Xcode/DerivedData/App-cfhcnhhhslsnnfgbageiarvgfnwf/Build/Products/Debug-iphonesimulator/App.app/app: Not a directory
mkdir: /Users/xx/Library/Developer/Xcode/DerivedData/App-cfhcnhhhslsnnfgbageiarvgfnwf/Build/Products/Debug-iphonesimulator/App.app/app/games: Not a directory