升級到OSX EICapitan cocoapods 重裝問題

更新後 cocoapods 需要重新安裝，但是使用原來的淘寶源（http://ruby.taobao.org/）

會報錯

ERROR: Could not find a valid gem ‘cocospods’ (>= 0), here is why:

      Unable to download data from http://ruby.taobao.org/ - bad response Not Found 404 (http://ruby.taobao.org/latest_specs.4.8.gz)

把http -> https

1.gem sources –remove http://ruby.taobao.org/

2.gem sources -a https://ruby.taobao.org/

3.查看源對不對

gem sources -l

4.再安裝就好了

sudo gem install cocoapods