xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Deve

今天在运行脚本的时候pod search报这个错误： /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.6.1/lib/cocoapods/command.rb:118:in `git_version': Failed to extract git version from `git --version` ("xcrun: error: invalid activ

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