Xcode11打开老项目时报错Multiple commands

1.报错信息：

Multiple commands produce '/Users/rht/Library/Developer/Xcode/DerivedData/XXX-aoyiwtnnlseexldisflfqrjolpfp/Build/Products/Debug-iphonesimulator/XXX.app/Info.plist': 1) Target 'XXX' (project 'XXX') has copy command from '/Users/rht/Desktop/未命名文件夹

2.解决办法

点击Xcode -> File -> Workspace Settings -> 下图中的Build System选择Legacy Build System ->保存