title: Error I18n::InvalidLocaleData
body: <p>I want use I18n and I already follow on how to do that from <code>railscast</code> but the thing gone wild and I don't know where the mistake, had tried check the format, tried several ways but still can't be done.</p>
  
  <p>my <strong><code>en.yml</code></strong></p>
  
  <pre><code>en:
    category:
      index:
        title: "Listing Categories"
        name: "Name"
        is_active: "Is Active"
  </code></pre>
  
  <p>my <strong><code>view</code></strong></p>
  
  <pre><code>&lt;%= t 'category.index.title' %&gt;
  </code></pre>
  
  <p>But return <code>I18n::InvalidLocaleData in Categories#index</code> and <code>can not load translations from /home/lenovo/cost_control/config/locales/en.yml, expected it to return a hash, but does not</code></p>
  
  <p>I had try on my <strong><code>en.yml</code></strong> just:</p>
  
  <pre><code>en:
    title: "Listing Categories"
  </code></pre>
  
  <p>and can work perfectly, but when I adding more line, just return me those error. I'm sorry I  just not so advanced yet in rails, thank you for the help you guys :D really.</p>