title: 'render' is not defined when running create react app
body: <p>When I am using create react app when compliling I get the following errors ./src/Grid.js
   "Line 3:  Your render method should have return statement" and "Line 5:  'render' is not defined"
  this is the contents of the the Grid.js file</p>
  
  <pre><code>import React, { Component } from 'react';
  
  class Grid extends Component {
      render(){
          return &lt;p&gt;Hello, World&lt;/p&gt;;
      }
  }
  
  export default Grid;
  </code></pre>
  
  <p>I can't see that is wrong here? any help appreciated</p>
  
  <pre><code>import React, { Component } from 'react';
  import Grid from './Grid.js';
  
  class App extends Component 
  {
    render()
    {
      return(
        &lt;div&gt; 
          &lt;Grid /&gt;
        &lt;/div&gt;
      );
    }
  }
  
  export default App;
  </code></pre>
  
  <p>This is where I am using the component</p>
  
  <pre><code>import React from 'react';
  import ReactDOM from 'react-dom';
  import App from './App';
  import registerServiceWorker from './registerServiceWorker';
  
  ReactDOM.render(&lt;App /&gt;, document.getElementById('root'));
  registerServiceWorker();
  </code></pre>
  
  <p>Where ReactDOM render is used</p>