OS X Yosemite : Impossible to install cocoapods

Question

I have ruby version : ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0] When I try install cocoapods i get :

$ sudo gem install cocoapods -V

ERROR:  Could not find a valid gem 'cocoapods' (>= 0), here is why:
          Unable to download data from https://rubygems.org/ - no such name (https://api.rubygems.org/latest_specs.4.8.gz)
GET https://api.rubygems.org/prerelease_specs.4.8.gz
302 Moved Temporarily
GET https://s3.amazonaws.com/production.s3.rubygems.org/prerelease_specs.4.8.gz
200 OK
GET https://api.rubygems.org/specs.4.8.gz
302 Moved Temporarily
GET https://s3.amazonaws.com/production.s3.rubygems.org/specs.4.8.gz
200 OK
ERROR:  Possible alternatives: cocoapods

Someone to help me solve this?

Answer 1

It appears that at this day HomeBrew has few issues with OSX Yosemite. I solved my issue by deleting ruby using the command :

brew uninstall ruby

and then installing rvm and ruby again with RVM:

curl -L https://get.rvm.io | bash -s stable --ruby
rvm rubygems latest

then gem install cocoapods worked like a charm !