Bug Google Play Games "Invalid classname: Object reference not set to an instance of an object".

I can't set up google play games for android. After pressing the setup button, I just get "Invalid classname: Object reference not set to an instance of an object." How can I fix this?

Google Play Games plugin version: 0.10.12

Unity Editior version 2021.3.16f1

 

Bump!

 

No different than every other nullref!

How to fix a NullReferenceException error

https://forum.unity.com/threads/how-to-fix-a-nullreferenceexception-error.1230297/

Three steps to success:
- Identify what is null <-- any other action taken before this step is WASTED TIME
- Identify why it is null
- Fix that

In the case of Google Play Games, their integration must be followed absolutely to a tee or it won't work, so you may wish to go back over the steps you did to integrate it.

 

still confused how to fix this

 

Same issue here! it seems its some bug related with the Google Play Games SDK ( at least, it's last version 0.11.01).
Still can't find any solution.

 

Hello, did you find the solution?, I have the same bug, I think maybe is the "Constant class name", but I don't know what to write?

 

It worked for me:

Before importing the unity package for v0.11.1, delete `Assets/Plugins/Android/com.google.android.gms.play-services-games-<version_number>.aar` and everything under `Assets/GooglePlayGames`(THEN RESTART UNITY) .
You can then follow the regular integration process.


https://github.com/playgameservices/play-games-plugin-for-unity/blob/master/UPGRADING.txt