如果只安装 command line tools 在 homebrew 更新的时候会一直报错,是的即使你已经安装了它还是会提醒去安装 CLT
xcrun: error: active developer path ("/Applications/Xcode.app/Contents/Developer") does not exist Use `sudo xcode-select --switch path/to/Xcode.app` to specify the Xcode that you wish to use for command line developer tools, or use `xcode-select --install` to install the standalone command line developer tools.