从App Store下载Xcode。 进入Xcode首选项/位置/CommandlineTools 你只需要设置成Xcode版本。它自动指向" /Application/ xcode。app "

我安装了两个Xcode实例。App和xcode-beta.app 当我试图用netbeans创建一个构建时，它向我显示了错误 支持的xcode版本和命令行工具没有找到netbeans

我遵循了以下步骤:

"xcode-select——print-path" = "/Applications/Xcode.app/Contents/Developer" " / / xcode /内容/应用开发人员/平台/ iPhoneSimulator。平台”的存在 "xcodebuild -version"以"Xcode"开头

after 1我发现它指向我到xcode-beta.app

下面是一个神奇的解决方案:

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

我只是运行了以下命令，问题为我解决了:

sudo xcode-select --reset

在你的终端中输入这个

xcode-select --install
sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
sudo xcodebuild -license accept

我在尝试使用npm安装包时遇到了一个问题。 我得到了错误:“sudo xcode-select -s /Applications//Xcode.app/Contents/Developer/”

要解决这个问题

我打开Xcode。 首选项 位置 选择命令林工具:Xcode 6.1.1

现在当用npm安装包时，我不再会得到错误。

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。