title: How would I troubleshoot this RoR error?
body: <p>So I I am trying to start the rails server and I get the error below:</p>
  
  <p>Hey guys, I tried to start the server with rails s and I get this error:</p>
  
  <pre><code>ldco2016@DCortes-MacBook-Pro-3 ~/Projects/blog_app (master)$ rails s                                                                                                                                                                                                     [ruby-2.2.0]
  /Users/ldco2016/.rvm/rubies/ruby-2.2.0/lib/ruby/site_ruby/2.2.0/rubygems/dependency.rb:315:in `to_specs': Could not find 'railties' (&gt;= 0.a) among 14 total gem(s) (Gem::LoadError)
  Checked in 'GEM_PATH=/Users/ldco2016/.rvm/gems/ruby-2.2.0:/Users/ldco2016/.rvm/gems/ruby-2.2.0@global', execute `gem env` for more information
  from /Users/ldco2016/.rvm/rubies/ruby-2.2.0/lib/ruby/site_ruby/2.2.0/rubygems/dependency.rb:324:in `to_spec'
  from /Users/ldco2016/.rvm/rubies/ruby-2.2.0/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_gem.rb:64:in `gem'
  from /usr/local/bin/rails:22:in `&lt;main&gt;'
  </code></pre>
  
  <p>I attempted changing ruby versions but I am not sure what is going on here.</p>
  
  <p>So I have done both a bundle exec and a bundle exec rails s and I have reinstalled ruby-2.2.5 but still not resolved.</p>