Problem with Google play services

03-11 04:01:35.406 14189-15524/? I/GamesNativeSDK: Auth operation started: SIGN IN
03-11 04:01:35.406 14189-15524/? I/GamesNativeSDK: Connecting to Google Play…
03-11 04:01:35.406 14189-15524/? E/GamesNativeSDK: Not authorizing: no client.
03-11 04:01:35.406 14189-14249/? I/Unity: AuthState == Unauthenticated calling auth callbacks with failure

                                          (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 64)
03-11 04:01:35.426 14189-14211/? I/Unity: Login failed for some reason
                                           
                                          (Filename: ./artifacts/generated/common/runtime/UnityEngineDebugBindings.gen.cpp Line: 64)

well i recive that on logcat but i followed the tutorial step by step!
where do you think the problem is?
i followed Unity Tutorial - Adding Official Google Play Game Services to your game FOR FREE - YouTube
and well , i am using the script he shared there so i dont know even where the problem is…
on Dev Console its says ready to test , and boom doesn’t work i am driving crazy.

Hello @bbaarrr2015

Add test account of your email id in Dev Console . Your game is not published, so you need test account.

I was having the same problem . I solved it like this…

This may help you

The problem was in the SDK,
If someone have this problem(not authorized or Unauthenticated).
Make sure to Remove the current sdk, and download Standalone SDK.
what i did . i just formated my PC , so Java,Jdk,SDK has been downloaded again!
also unity.