title: ReactJS - net::ERR_FILE_NOT_FOUND
body: <p>I'm suddenly having issues with production versions of my react apps. They work fine in development, however when I build them, I get a console error:</p>
  
  <p>/static/css/main.f6418f8a.chunk.css:1 Failed to load resource: </p>
  
  <blockquote>
    <p>net::ERR_FILE_NOT_FOUND</p>
    
    <p>1.13eeb203.chunk.js:1 Failed to load resource: net::ERR_FILE_NOT_FOUND</p>
    
    <p>main.1e6014ca.chunk.js:1 Failed to load resource:
    net::ERR_FILE_NOT_FOUND</p>
    
    <p>/favicon.ico:1 Failed to load resource: net::ERR_FILE_NOT_FOUND</p>
  </blockquote>
  
  <p>This error was received after the following commands:</p>
  
  <p><code>create-react-app whatiswrong</code></p>
  
  <p><code>npm run build</code></p>
  
  <p>Then open the index.html in my browser like I would for any other react apps I've built.</p>