I think you are migrating to AndroidX libs.
Add below lines to gradle.properties file
android.useAndroidX=true
android.enableJetifier=true
Remove tools:replace="android:appComponentFactory" from manifest.
Replace import from android.support.v7.app.AppCompatActivity to androidx.appcompat.app.AppCompatActivity in activities. Use replace in project to expedite the process of refactoring.
Migrating to AndroidX