android.view.View$OnUnhandledKeyEventListener
Solution 1:
If using Android X and androidx.core:core and/or androidx.appcompat:appcompat, update androidx.core:core to 1.4.0-alpha01 and/or androidx.appcompat:appcompat to 1.3.0-alpha01
Solution 2:
Make the changes in your build.gradle (app level) to downgrade to version 27 as below. Then sync and build project. Hopefully it will fix the issue..
compileSdkVersion 27
targetSdkVersion 27
implementation 'com.android.support:appcompat-v7:27.1.1'