title: Android app runs on device but is incompatible in Playstore
body: <p>I need your expertise here.</p>
  
  <p>I have developed and published an Android app with targetSdk 28 and minSdk 21.</p>
  
  <p>I use Visual Code and Ionic.</p>
  
  <p>I tested it on a Samsung device with 5.1.1 and it worked fine.</p>
  
  <p>I published the app and now the Playstore tells me it is incompatible.
  It is also the case with a Samsung Tab A with 8.1</p>
  
  <p>Why is this and how do I solve it?</p>