原始文章中的错误是由于配置不正确的Ruby环境造成的。你永远不应该使用sudo来安装gems，无论你在Stack Overflow上看到多少次它是一个可接受的答案。

基本上，在Mac上建立一个合适的Ruby开发环境包括六个步骤:

Install Homebrew (which also installs the prerequisite Apple command line tools) Install a Ruby manager (such as chruby, rbenv, asdf, RVM) - most of these can be installed with Homebrew Configure the Ruby manager by adding the appropriate lines to your shell file (~/.bash_profile or ~/.zshrc) - each manager will have instructions for doing this, and this is a typical step that people miss Restart the terminal (or open a new tab) for the shell changes to take effect - another step that is often overlooked Install a specific version of Ruby using the Ruby manager Switch to that version of Ruby using the Ruby manager

我个人的偏好是chruby和ruby-install。更多细节和脚本，可以自动化这整个过程，看看我的答案在这里: https://stackoverflow.com/a/54873916/928191

正如已接受的答案所提到的，您也可以用Homebrew安装Ruby，但还需要确保在shell文件中设置了PATH。这方面的说明在我的答案上面链接。

下面的方法对我很有效:

在XCode中选择命令行工具。 XCode >首选项>位置>命令行工具> XCode 11.X.X x 在终端执行: 安装cocoapods -n /usr/local/bin

https://stackoverflow.com/a/60464653

原始文章中的错误是由于配置不正确的Ruby环境造成的。你永远不应该使用sudo来安装gems，无论你在Stack Overflow上看到多少次它是一个可接受的答案。

基本上，在Mac上建立一个合适的Ruby开发环境包括六个步骤:

Install Homebrew (which also installs the prerequisite Apple command line tools) Install a Ruby manager (such as chruby, rbenv, asdf, RVM) - most of these can be installed with Homebrew Configure the Ruby manager by adding the appropriate lines to your shell file (~/.bash_profile or ~/.zshrc) - each manager will have instructions for doing this, and this is a typical step that people miss Restart the terminal (or open a new tab) for the shell changes to take effect - another step that is often overlooked Install a specific version of Ruby using the Ruby manager Switch to that version of Ruby using the Ruby manager

我个人的偏好是chruby和ruby-install。更多细节和脚本，可以自动化这整个过程，看看我的答案在这里: https://stackoverflow.com/a/54873916/928191

正如已接受的答案所提到的，您也可以用Homebrew安装Ruby，但还需要确保在shell文件中设置了PATH。这方面的说明在我的答案上面链接。

我通过运行brew install ruby来修复它

我在升级到Mac OS High Sierra时遇到了这个问题。

这是我的解决方案:

sudo gem install cocoapods

我在Github上的CocoaPods问题列表上找到了这个答案。

MACOS X Catalina

我试了大部分答案，但没有一个管用。如果上面没有工作尝试打开Xcode首选>位置>选择命令行工具到Xcode。然后安装cocoapods

sudo gem install -n /usr/local/bin cocoapods