1.执行命令：

sudo gem install cocoapods

因为是新机，内置的ruby版本是（2.6.0）太低，会报错

所以需要安装新的ruby版本

2.如果已经安装了低版本的homebrew，可以先卸载：

        卸载：

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/uninstall.sh)"

        安装最新版本：

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

因为是外网所以需要设置VPN，或者修改电脑配置 hosts文件，添加：

185.199.108.133   raw.githubusercontent.com
185.199.109.133   raw.githubusercontent.com
185.199.110.133   raw.githubusercontent.com
185.199.111.133   raw.githubusercontent.com

3.使用 homebrew 安装 最新版的ruby：

brew install chruby ruby-install

安装结束会提示：

- Run these two commands in your terminal to add Homebrew to your PATH:(echo; echo 'eval "$(/opt/homebrew/bin/brew shellenv)"') >> /Users/guojunlong/.zprofileeval "$(/opt/homebrew/bin/brew shellenv)"
- Run brew help to get started
- Further documentation:https://docs.brew.sh

此时按照提示依次执行：

    (echo; echo 'eval "$(/opt/homebrew/bin/brew shellenv)"') >> /Users/guojunlong/.zprofileeval "$(/opt/homebrew/bin/brew shellenv)"

然后安装 ruby3.2.2

ruby-install ruby 3.2.2

4.配置环境：

echo "source $(brew --prefix)/opt/chruby/share/chruby/chruby.sh" >> ~/.zshrc
echo "source $(brew --prefix)/opt/chruby/share/chruby/auto.sh" >> ~/.zshrc
echo "chruby ruby-3.2.2" >> ~/.zshrc

5.更新配置，并验证

source ~/.zshrc ruby -v

6.最后直接安装即可

gem install cocoapods