title: Missing partial, but the file is there with the underscore in the name
body: <p>I have a partial view called _footer.html.erb (I created only this file manually) in my app/views/layouts folder.
  In my app/views/layouts/application.html.erb file, I have:</p>
  
  <pre><code>    &lt;%= render 'layouts/_footer.html.erb' %&gt;
  </code></pre>
  
  <p>When I open the page, I get the following error:</p>
  
  <pre><code>Missing partial layouts/_footer.html.erb with {:locale=&gt;[:en], :formats=&gt;[:html], :handlers=&gt;[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
    * "D:/rails/TestApp/app/views"
  </code></pre>
  
  <p>I've made some research and, as far as I understood, the only requirement is the underscore before the name.
  Did I miss something? I am following <a href="http://railsapps.github.io/rails-google-analytics.html" rel="noreferrer">this tutorial</a></p>