title: Uncaught Error: Invariant Violation: React.render(): Invalid component element
body: <p>I'm a react newbie</p>
  
  <p>and I'm Creating a simple class and function and rendering to the body.</p>
  
  <p>However, </p>
  
  <p>I get an <code>Uncaught Error: Invariant Violation: React.render(): Invalid component element.</code>  </p>
  
  <pre><code>&lt;script src="https://fb.me/react-0.13.3.js"&gt;&lt;/script&gt;
  &lt;script src="https://fb.me/JSXTransformer-0.13.3.js"&gt;&lt;/script&gt;
  &lt;script src="https://code.jquery.com/jquery-2.1.3.min.js"&gt;&lt;/script&gt;
  &lt;script type="text/jsx"&gt;
  
      var HelloWorld = React.createClass({
          render: function() {
              return &lt;div&gt;Hello, world!&lt;/div&gt;;
          }
      });
  
      React.render(new HelloWorld(), document.body);
  
  &lt;/script&gt;
  
  
  &lt;body&gt;
  
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>Any ideas on what is wrong?</p>