Firebase App Invite stop working with Dexguard

Question

My app works fine. But in preparation to go to production, I applied Dexguard. With Dexguard Firebase AppInvite no longer works. When I send an invite, I get by the snackbar

Message failed to send!

How do I make Firebase App Invite work with Dexguard? Btw, I have no problem with Firebase Cloud Messaging.

I am using

 compile "com.google.firebase:firebase-invites:9.0.0"

and

 classpath 'com.google.gms:google-services:3.0.0'

Answer 1

You should use firebase version 9.2.0 or later. Earlier versions do not include proper keep rules for internal classes that are getting accessed via reflection.