Multiple commands produce '/Users/.../Library/Developer/Xcode/DerivedData/...
方法如下:
1:打开菜单栏File,点击Workspace settings
3540622100-5dd65afe832ab_articlex.png
2:点击build system
3:将build system改为 Legacy Build system
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转自于https://segmentfault.com/a/1190000021079223