title: HAML Error - 2 spaces were used for indentation
body: <p>Use a HAML and partition in the site</p>
  
  <p>show.html.haml</p>
  
  <pre><code>%ul
    =render :partial =&gt; "layouts/brand", :collection =&gt; @main_foreign_brands, :as =&gt; :brand
  </code></pre>
  
  <p>layouts/_brand.html.haml</p>
  
  <pre><code>%li=link_to brand.name, brand.url
  </code></pre>
  
  <p>but I have an error:
   Showing /my_site/app/views/mains/show.html.haml where line #11 raised:</p>
  
  <p>Inconsistent indentation: 2 spaces were used for indentation, but the rest of the document was indented using 4 spaces.</p>
  
  <p>What's wrong?</p>