curl: (7) Failed to connect to raw.githubusercontent.com port 443: Connection refused

mac版本：

　　

 

 执行flutter doctor 显示cocoapods已被安装，但是不能用(not working)，于是我根据安装指令安装cocoapods，但是安装错误，显示以下报错

curl: (7) Failed to connect to raw.githubusercontent.com port 443: Connection refused

 

 

 

1.打开网站https://www.ipaddress.com/，查询一下 raw.githubusercontent.com对应的IP 地址

 

2.终端输入sudo vi /etc/hosts，来进行编辑（最新版本没有权限修改hosts文件），输入i进入编辑状态，输入以下内容，然后按esc，最后输入:wq进行保存

199.232.96.133  raw.githubusercontent.com

 

 

3.终端输入安装执行，安装 Homebrew

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

 

 

4.终端输入

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

然后再次输入flutter doctor

 

 

 

 

终端输入

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

  sudo xcodebuild -runFirstLaunch

 

 

 

 

 

 解决方法：参考https://blog.csdn.net/qq_43531694/article/details/106862753