title: Skip test unit in Ruby on Rails not working
body: <p>I am new to Ruby on Rails and I am learning it thru <a href="http://ruby.railstutorial.org/chapters/static-pages#top" rel="nofollow">http://ruby.railstutorial.org/chapters/static-pages#top</a> this tutorial.</p>
  
  <p>One command given in this tutorial is not working for me</p>
  
  <pre><code>rails new sample_app --skip-test-unit
  </code></pre>
  
  <p>Error text is </p>
  
  <blockquote>
    <p>Invalid option --skip-test-unit</p>
  </blockquote>
  
  <p>Any idea why it is not working and how I can solve it?</p>