Multiple commands produce '/User

Multiple commands produce '/Users/kingsoft/Library/Developer/Xcode/DerivedData/PowerWord7-ekklrvxtfuwfkofrfmywajkhpirg/Build/Products/Debug-iphoneos/.app':
1) Target 'PowerWord7' has a command with output '/Users/kingsoft/Library/Developer/Xcode/DerivedData/PowerWord7-ekklrvxtfuwfkofrfmywajkhpirg/Build/Products/Debug-iphoneos/.app'
2) Target 'PowerWord7' has create directory command with output '/Users/kingsoft/Library/Developer/Xcode/DerivedData/PowerWord7-ekklrvxtfuwfkofrfmywajkhpirg/Build/Products/Debug-iphoneos/.app'

我这种情况的解决方案

Target->Runner->Build Settings->Search for "Product Name"

Product Name是空的话，改为你的Target 名字