title: Android forms previewer renderer instead of the usual preview
body: <p>I just created a mobile app with xamarin.forms and I wanted to start, by making the navigation of the application. Upon creating a content page the previewer ends up not showing anything, apart from a text saying:</p>
  
  <blockquote>
    <p>Android forms previewer renderer instead of the usual preview. </p>
  </blockquote>
  
  <p>I'm using Visual Studio 2019 and I have the nugets all updated.</p>
  
  <p><a href="https://i.stack.imgur.com/nmyOb.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nmyOb.png" alt="Image of what is happening"></a></p>