title: Unity and Firebase - Package Manager Resolver, uninstalling the following packages: Firebase Authentication
body: <p>I'm using Unity 2019.3.4f1 and Firebase Package 6.15.2 and when I import the Custom Package the Package Manager Resolver asks to change the &quot;/manifest.json&quot;.</p>
  <p>When I click &quot;Add Selected Registries&quot;, Unity starts to Uninstall the packages and stay on its hours with this message: &quot;Uninstalling the following packages: Firebase Authentication&quot;</p>
  <p><a href="https://i.stack.imgur.com/pMv2r.png" rel="nofollow noreferrer">Package Manager Resolver</a></p>
  <p>I can't deploy or play the game without this message appears.</p>