cocoapods 无法连接github

Failed to connect to GitHub to update the CocoaPods/Specs specs repo - Please check if you are offline, or that GitHub is down

1. 转 stackflow解决办法

一般都能解决，不过由于ruby中国镜像源淘宝交由ruby-china维护，因此需要把原来的
https://ruby.taobao.org/替换成https://gems.ruby-china.com/，因为最近域名改了，原来为：https://gems.ruby-china.org/

2. 转 cocopods 安装与卸载

方法一流程完成之后还是无法连接，可试着清除缓存

rm -rf  ~/.cocoapods/repos/master）,也可以直接从官网上直接拷贝Specs到 ~/.cocoapods/repos文件下的master文件下（最终 ~/.cocoapods/repos/master/Specs)

3. 转pod setup git超出缓存空间无法下载

• 1. 设置postBuffer

git config --global http.postBuffer 524288000 // 500M
git config --list // 查看配置项

• 2. 用另一个方式下载
     用 git clone https://git.coding.net/CocoaPods/Specs.git ~/.cocoapods/repos/master 替换 pod setup

如果更改缓存无效可以尝试重装git

Installing Git via homebrew with these flags works:

```
brew install git --with-brewed-curl --with-brewed-openssl

```

Or:

```
brew reinstall git --with-brewed-curl --with-brewed-openssl
```