title: How to set default rails version for a project?
body: <p>I have installed two different rails versions in my system (Fedora). </p>
  
  <pre><code>gem list -d rails
  *** LOCAL GEMS ***
  
  rails (3.0.5, 1.2.1)
      Author: David Heinemeier Hansson
      Rubyforge: http://rubyforge.org/projects/rails
      Homepage: http://www.rubyonrails.org
      Installed at (3.0.5): /usr/local/lib/ruby/gems/1.8
                   (1.2.1): /usr/local/lib/ruby/gems/1.8
  
      Full-stack web application framework.
  </code></pre>
  
  <p>When i try to create the project like following way ("<a href="http://www.nomachetejuggling.com/2008/03/12/using-multiple-versions-of-rails/" rel="noreferrer">http://www.nomachetejuggling.com/2008/03/12/using-multiple-versions-of-rails/</a>")</p>
  
  <pre><code>rails 1.2.1 myproject
  </code></pre>
  
  <p>But, it's not working. So, i checked</p>
  
  <pre><code>rails -v
  Rails 3.0.5
  </code></pre>
  
  <p>So, can you help me, how to create the project with older version and newer version. Is there any way to set the particular rails version as default?</p>