使用xcode10打开旧项目报了如下错误：
error: Multiple commands produce '/Users/XXX/Library/Developer/Xcode/DerivedData/XXXXX-gpiinbrldqmtipgxzbgiqblnpfkb/Build/Products/Release-iphonesimulator/XXXX.framework/Info.plist':
1) Target 'XXXX' (project 'XXXX') has copy command from '/Users/XXX/submodules/libtgvoip/Info.plist' to '/Users/XXX/Library/Developer/Xcode/DerivedData/XXXXX-gpiinbrldqmtipgxzbgiqblnpfkb/Build/Products/Release-iphonesimulator/XXXX.framework/Info.plist'
2) Target 'XXXX' (project 'XXXX') has process command with output '/Users/XXX/Library/Developer/Xcode/DerivedData/XXXXX-gpiinbrldqmtipgxzbgiqblnpfkb/Build/Products/Release-iphonesimulator/XXXX.framework/Info.plist'
解决方案：
选择 xcode -> File -> Project Settings... -> Shared Project Settings: -> Build System -> Legacy Build System ->Done
如果是workspace，则选择
xcode -> File -> Workspace Settings... -> Shared Workspace Settings: -> Build System -> Legacy Build System ->Done
