title: Rails Chartkick Gem Error Loading Chart No Adapter Found
body: <p>I have a Rails 3.2.14 app where I'm using the <code>chartkick</code> and <code>groupdate</code> gem to try to generate some basic charts.</p>
  
  <p>When I load my view I get the error:
  <code>Error Loading Chart: No adapter found</code></p>
  
  <p>Here's what my view code looks like:</p>
  
  <p><strong>index.html.erb</strong></p>
  
  <p><code>&lt;%= line_chart Call.group_by_week(:created_at).count %&gt;</code></p>
  
  <p>Here's my application layout including chartkick and yielding chart_js
  <strong>application.html.erb (layout)</strong></p>
  
  <pre><code> &lt;%= javascript_include_tag "application", "chartkick" %&gt;
   &lt;%= yield :charts_js %&gt;
  </code></pre>
  
  <p>Can anyone tell me why I'm getting this error and how to fix it?  I'd really like to start using Chartkick to generate some simple charts.</p>