title: flutter_local_notifications: "PlatformException (PlatformException(INVALID_ICON, The resource could not be found))
body: <p>I'm trying to add notifications to my app using the flutter_local_notifications plugin but AndroidInitializationSettings requires a drawable resource and throws this error when one is not provided: </p>
  
  <pre><code>    "PlatformException (PlatformException(INVALID_ICON, The resource  could not be found. Please make sure it has been added as a drawable resource to your Android head project., null))"
  </code></pre>
  
  <p>The problem is that I don't know where Android head project is located.</p>