xcode报错问题

1. Command PhaseScriptExecution failed with a nonzero exit code

2. library not found for -libstdc++.6.0.9

3.Xcode有关lstdc++报错

4.Multiple commands produce '/Users/asc/Library/Developer/Xcode/DerivedData/

5.: "_OBJC_CLASS_$_JPUSHService", referenced from:

6.Xcode11找不到Application Loader解决方式

7.Xcode12报错 No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64,

8.Virtual filesystem overlay file ‘/Users/mac/Library/Developer/Xcode/DerivedData/traditionalSecondASK

9.virtual filesystem overlay file ‘/Users/mc/Library/Developer/Xcode/DerivedData/XueBa-cebydcbvabnqdsbxsxdrjaumyyzv/Build/Intermediates/ArchiveIntermediates/XueBa/IntermediateBuildFilesPath/XueBa.build/all-product-headers.yaml’ not found