pod install一直报错，pod update也不行，setup也不行，请问咋解决啊

[littleZhangqq]

错误提示：
[!] Unable to add a source with url https://github.com/aliyun/aliyun-specs.git named aliyun.
You can try adding it manually in /Users/zhangqiang/.cocoapods/repos or via pod repo add.

[littleZhangqq]

试过了 Pod repo add aliyun https://github.com/aliyun/aliyun-specs.git
这个也不行 提示：
[!] /usr/bin/git clone https://github.com/aliyun/aliyun-specs.git -- aliyun

Cloning into 'aliyun'...
fatal: unable to access 'https://github.com/aliyun/aliyun-specs.git/': Failed to connect to github.com port 443: Operation timed out

[littleZhangqq]

试过了 ~/.cocoapods/repos 且 git clone https://github.com/aliyun/aliyun-specs.git master
还是不行，提示
fatal: unable to access 'https://github.com/aliyun/aliyun-specs.git/': Failed to connect to github.com port 443: Operation timed out

[a83988029]

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