title: Error: The submission can only contain one appx or one appxbundle
body: <p>I have already published an app with the <code>Version 1.1.0.0</code>. </p>
  
  <p>When I'm trying to <code>update</code> the app with a new <code>.appx</code> file after creating the <code>AppPackage</code> I'm getting this kind of an error.</p>
  
  <p>It's a <code>Universal</code> app where i've published the first versions of the <code>Windows Store</code> &amp; <code>Windows Phone</code>. Now i'm trying to update the Win Phone app where i'm facing the issue. I can't even see the replace button near the <code>Delete</code> option. </p>
  
  <p>Whenever i try to upload the new appx or the bundle file, it's not letting me to submit.</p>
  
  <p>Any help would be appreciated.</p>