Ruby on Rails, could not find a valid gem 'rails'

Question

I installed ruby and updated ruby gems, now I want to download rails 3.2.13. I write gem install rails -v 3.2.13 (I need this version) I have this error

ERROR:         


        

Answer 1

The answer and methodology can be found on http://guides.rubygems.org/ssl-certificate-update/

Skip to "INSTALLING USING UPDATE PACKAGES (NEW)" and follow the instructions

Newest RubyGem can be found at https://rubygems.org/pages/download