title: Problems with heroku toolbelt
body: <p>I'm absolute newbie in Ruby and Rails project, so I'm sorry if this is dumb question.</p>
  
  <p>I've installed heroku toolbelt using <code>wget -qO- https://toolbelt.heroku.com/install-ubuntu.sh | sh</code>. Also I tried <code>gem install heroku</code>. But when I type: </p>
  
  <pre><code>MY_USER@home-PC:~$ heroku version
  &lt;internal:gem_prelude&gt;:1:in `require': cannot load such file -- rubygems.rb (LoadError)
      from &lt;internal:gem_prelude&gt;:1:in `&lt;compiled&gt;'
  </code></pre>
  
  <p>I've checked in google and people suggest that gem and current ruby are different versions so I've checked it and they seem to the same:</p>
  
  <pre><code>MY_USER@home-PC:~$ which ruby
  /home/MY_USER/.rvm/rubies/ruby-1.9.3-p327/bin/ruby
  
  MY_USER@home-PC:~$ gem env | grep 'RUBY EXECUTABLE'
    - RUBY EXECUTABLE: /home/MY_USER/.rvm/rubies/ruby-1.9.3-p327/bin/ruby
  </code></pre>
  
  <p>I have no idea what to do more, so please help.</p>
  
  <p>Sorry for the maybe stupid question, thanks in advance.</p>
  
  <p>EDIT: 
  Forgot to say I'm running Ubuntu 12.10.</p>