title: PDFKit - bin/rails:6: warning: already initialized constant APP_PATH
body: <p>I am new to ruby on rails. In order to use pdfKit I have followed these steps as mentioned in this link <a href="http://blog.andolasoft.com/2012/10/usage-of-pdfkit-with-rails-3-2-8-and-ruby-1-9-3.html#" rel="nofollow">How to use pdfkit with rails?</a>. </p>
  
  <p>I have also re-installed the bundles. When I am trying to start my rails server I get the following error:</p>
  
  <blockquote>
    <p>bin/rails:6: warning: already initialized constant APP_PATH
        Usage: rails COMMAND [ARGS]</p>
  </blockquote>