file not found: /Users//Library/Developer/Xcode/DerivedData/-febavuacartcluesfupiewlefvzv/Build/Products/Debug-iphonesimulator/.app/
clang: error: linker command failed with exit code 1 (use -v to see invocation)
解决方案:
file not found: /Users//Library/Developer/Xcode/DerivedData/-febavuacartcluesfupiewlefvzv/Build/Products/Debug-iphonesimulator/.app/
clang: error: linker command failed with exit code 1 (use -v to see invocation)
解决方案: