Google play game and Unity 2020.1 need help

Hello
I import package “Google play game” latest version from GitHub - playgameservices/play-games-plugin-for-unity: Google Play Games plugin for Unity in Unity 2020.1.
I have next error “‘PlayGamesLocalUser’ does not implement interface member ‘IUserProfile.gameId’”

How implement gameId?.

Why are you trying to deploy from an alpha branch?

Google play game alpha branch?. Not understand . I get version from https://github.com/playgameservices/play-games-plugin-for-unity/releases

I have try older versions but have same error

Unity 2020.1 is an alpha release.

Of Unity. Unity 2020.1 isn’t even in beta yet.

I will try on beta 2019.2

What’s wrong with using the latest stable release? What are you after that you can’t get from that?

No problem in Unity 2019.2

Also 2019.2 isn’t the beta. 2019.3 is.

ok thx