Idea 提示xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xc

背景：macOs High Sierra 升級 macOs Mojave後，idea 報錯，Terminal git也不行：

Сannot Run Git
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

處理：

　　一、 xcode-select --install

        如提示：xcode-select: error: command line tools are already installed, use "Software Update" to install updates 證實安裝成功

      二、安裝完成後，Terminal裏的git能夠正常運行了，IDEA裏仍是一樣的報錯，將Git配置欄裏的/usr/bin/git改成git，搞定