title: Unable to get past the 'React App' main screen
body: <p>I'm not able to get a 'react' application beyond Screen with the &quot;atom icon&quot; and &quot;learn React&quot; link.
  There is a message saying 'Edit src/App.js and save to reload.'</p>
  <p>But there's nothing giving any information or clue about what changes need to be made to the App.js file, what configuration or other settings to check (and what the values should be), etc.</p>
  <p>What do I need to do to get a React app to actually work?</p>
  <pre><code>//=========================
  // BEGIN App.js SourceCode:
  // ------------------------
  import React from 'react';
  import logo from './logo.svg';
  import './App.css';
  
  function App() {
      return (
          &lt;div className=&quot;App&quot;&gt;
          &lt;header className=&quot;App-header&quot;&gt;
          &lt;img src={logo} className=&quot;App-logo&quot; alt=&quot;logo&quot; /&gt;
          &lt;p&gt;
            Edit &lt;code&gt;src/App.js&lt;/code&gt; and save to reload.
          &lt;/p&gt;
          &lt;a className=&quot;App-link&quot;
             href=&quot;https://reactjs.org&quot;
             target=&quot;_blank&quot;
             rel=&quot;noopener noreferrer&quot;
          &gt;
            Learn React
          &lt;/a&gt;
          &lt;/header&gt;
          &lt;/div&gt;
      );
  }
  
  export default App;
  // ----------------------
  // END App.js SourceCode
  //=======================
  </code></pre>