title: Manifest merger failed with multiple errors in unity 2019.4.11f1
body: <p>I was trying to make some ar and i was watching the videos on youtube how to do that and i followed along.But at last it showed me some errors.</p>
  <p>I am putting some screenshot so that you can tell what's wrong  i am doing...
  Thanks in advance for helping me..</p>
  <p><a href="https://i.stack.imgur.com/s4SIK.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/s4SIK.jpg" alt="enter image description here" /></a></p>
  <p><a href="https://i.stack.imgur.com/y5dho.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/y5dho.jpg" alt="enter image description here" /></a></p>
  <p><a href="https://i.stack.imgur.com/vWTL7.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/vWTL7.jpg" alt="enter image description here" /></a></p>
  <p>THESE ARE THE PACKAGES THAT I HAVE INSTALLED IN FOR THIS AR</p>
  <ol>
  <li>AR FOUNDATION - 2.1.10
  2 AR CORE -2.1.12
  3 AR KIT - 2.1.10</li>
  </ol>