Error with Google Play Services

There's a ticket open on their github for this problem: https://github.com/playgameservices/play-games-plugin-for-unity/issues/1207

I had the same problem with the 0.9.34 Unity Package. I worked around it by going back to 0.9.33.

You can get the older build here: https://github.com/playgameservices/play-games-plugin-for-unity/tree/version_933/current-build

Thanks for the answer but even by going back to 0.9.33 I still get the same problem.