sudo xcode-select -s /Applications/Xcode 10.app/Contents/Developer

languoguangs-iMac:/ languoguang$ sudo xcode-select -s /Applications/Xcode 10.app/Contents/Developer
xcode-select: error: invalid argument '10.app/Contents/Developer'
Usage: xcode-select [options]

Print or change the path to the active developer directory. This directory
controls which tools are used for the Xcode command line tools (for example, 
xcodebuild) as well as the BSD development commands (such as cc and make).

Options:
  -h, --help                  print this help message and exit
  -p, --print-path            print the path of the active developer directory
  -s <path>, --switch <path>  set the path for the active developer directory
  --install                   open a dialog for installation of the command line developer tools
  -v, --version               print the xcode-select version
  -r, --reset                 reset to the default command line tools path
languoguangs-iMac:/ languoguang$ sudo xcode-select -s "/Applications/Xcode 10.app/Contents/Developer"

因为我在应用程序中的Xcode名称是Xcode 10，

sudo xcode-select -s "/Applications/Xcode 10.app/Contents/Developer"

的工作原理。

XCode2: sudo Xcode -select -s /应用程序/Xcode\ 2.app/内容/开发者

注意“\”以避开空格

Xcode >首选项>位置>命令行工具

选择与你的Xcode版本匹配的选项。

如果你使用的是Xcode测试版，运行

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

而不是

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

从App Store安装Xcode。安装完成后，使用root权限运行xcodebuild，即sudo xcodebuild并接受该语言。在这个npm安装之后，bcrypt就像一个魅力!

没有Xcode:创建文件/usr/local/bin/xcodebuild的内容来欺骗XcodeSelect

  #!/bin/bash
  exit 0

Chmod +x /usr/local/bin/xcodebuild