title: Flutter app show grey screen in release mode but works fine in debug mode Instance of 'DiagnosticsProperty<void>'
body: <p>I notice that the app works fine in debug mode but when I try the apk on my phone the app shows a grey screen after the loading screen.
  when i used https and i adding all permission.</p>
  
  <p>Httpclient not works in release mode (I/flutter (22182): Another exception was thrown: Instance of 'fr')</p>
  
  <p>but works in debug mode in flutter android</p>