title: Mac OS X Mountain Lion "Rails is not currently installed on this system."
body: <p>I am on a fresh install of OS X Mountain Lion. I have installed rails via:</p>
  
  <pre><code>sudo gem install rails
  </code></pre>
  
  <p>Everything seems to install correctly, but when I type the rails command (rails s, rails -v, etc), I get this error:</p>
  
  <pre><code>Rails is not currently installed on this system. To get the latest version, simply type:
  
      $ sudo gem install rails
  
  You can then rerun your "rails" command.
  </code></pre>
  
  <p>The result of '<code>which rails</code>' is <code>/usr/bin/rails</code></p>
  
  <p>I thought it was a path issue, and perhaps it is, but I can see that /usr/bin is part of my PATH. </p>
  
  <p>Any help? Thanks!</p>
  
  <p>UPDATE: I noticed everything on my other mac with same exact OS works pretty well... I just can't remember how I got it to work that way. If I run 'which rails' I see it's in a totally different place /Users/username/.rvm/gems/ruby-1.9.3-p194/bin/rails</p>