錯誤：xcode-select: error: command line tools are already installed, use “Software Update” to install

使用node npm install 一直抱錯，

gyp: No Xcode or CLT version detected!

最後查到用以下指令解決

xcode-select --install

1	xcode-select --install

但發生xcode-select: error: command line tools are already installed, use “Software Update” to install 錯誤提示時，就要先清除掉

sudo rm -rf /Library/Developer/CommandLineTools

1	sudo rm -rf /Library/Developer/CommandLineTools

Reference