FIX: (extender#385) ‘Up Android min sdk version to 21 (Android 5.0)’ by ekharkunov
The minimum supported Android API version has been increased from 19 (Android 4.4) to 21 (Android 5.0).
If you are using a custom AndroidManifest.xml file, make sure to replace
android:name=“android.support.multidex.MultiDexApplication”
with
android:name=“android.app.Application”