（转载）Mac OS X 跟新到10.11后cocoapods安装出现的问题（- bad response Not Found 404 (http://ruby
转载：http://blog.csdn.net/w_x_p/article/details/49151477今天在用cocoapods安装第三方库时出现问题，so？怎么用着好好就不能用了http://static.blog.csdn.net/xheditor/xheditor_emot/default/crazy.gif。查找原因是不是ruby需要更新，结果更新了也没有用，那就重新安装最新版的cocoapods来解决问题吧，结果~，报错了......
报错情况如下：
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)
解决办法：
将http 替换成 https
1.gem sources --remove http://ruby.taobao.org/
2.gem sources -a https://ruby.taobao.org/
3.查看源对不对
gem sources -l
4.再安装就好了
sudo gem install cocoapods
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