title: Xamarin warning : max res 25, skipping mipmap-anydpi-v26
body: <p>I have configured Visual Studio 2017 to build an app, but during compile I see this warning:</p>
  
  <blockquote>
    <p>xamarine warning : max res 25, skipping mipmap-anydpi-v26</p>
  </blockquote>
  
  <p>and if I try to create a new Android device, to test the application, I see this result:</p>
  
  <blockquote>
    <p>Device could not be created Please file an issue by choosing Report a
    Problem in the Help menu...</p>
  </blockquote>
  
  <p>How can I solve this issue?</p>
  
  <p>thanks</p>