xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance

报这个错误的原因是xcode-select不在默认的路径
1.找到xcode-select的当前路径终端命令行

xcode-select --print-path

/Library/Developer/CommandLineTools

2.设置xcode-select到指定位置

sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer/ 

3.验证是否设置成功

xcode-select --print-path

/Applications/Xcode.app/Contents/Developer