title: Flutter web asset images not displaying when deployed to web server
body: <p>I have created a <code>flutter web</code> project which uses network images and asset images, everything works fine when debugging on my pc but when I deploy it to a web server, the network images work fine but the asset images dont show at all. When I Inspect the page in the web browsers consol, I get the error below:</p>
  
  <pre><code>$1 @ window.dart:120
  /assets/slack.png:1 Failed to load resource: the server responded with a status of 503 ()
  window.dart:120 Error while trying to load an asset: Failed to load asset at "assets/slack.png" (503)
  
  $1 @ window.dart:120
  /assets/flutterLogo.png:1 Failed to load resource: the server responded with a status of 503 ()
  window.dart:120 Error while trying to load an asset: Failed to load asset at "assets/flutterLogo.png" (503)
  
  $1 @ window.dart:120
  /assets/kross.jpg:1 Failed to load resource: the server responded with a status of 503 ()
  window.dart:120 Error while trying to load an asset: Failed to load asset at "assets/kross.jpg" (503)
  
  $1 @ window.dart:120
  /assets/codingRocket2.png:1 Failed to load resource: the server responded 
  </code></pre>