.. _missing_xcrun:

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升级macOS后"missing xcrun"处理
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macOS操作系统升级以后，一些工具命令，例如 ``git`` 等工具会出现以下报错::

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

这是因为 Xcode Command-line Tools 需要升级

- 打开一个终端窗口执行以下命令::

   xcode-select --install

- 在弹出窗口确认下载安装command line tools

- 安装完成后需要重启终端窗口程序

- 如果上述方式不成功，则尝试强制reset::

   sudo xcode-select --reset

- 如果上述安装失败，则需要在WEB浏览器中登陆Apple Developer网站，通过web安装 ``Command Line Tools for Xcode 12.x``

参考
=====

- `Mac OS: xcrun: error: invalid active developer path, missing xcrun <https://ma.ttias.be/mac-os-xcrun-error-invalid-active-developer-path-missing-xcrun/>`_
- `Git is not working after macOS Update (xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools)) <https://stackoverflow.com/questions/52522565/git-is-not-working-after-macos-update-xcrun-error-invalid-active-developer-pa>`_