question

I am pretty much (maybe entirely at this point) using the script from the tutorial on Google Auth and I keep getting this same error. It tells me thet "One of the following properties must be defined: ServerAuthCode, AccessToken, EncryptedRequest." This is the part of the code I believe is having an issue. If you have any idea what I am doing wrong, it would very helpful, thank you in advance.

 Social.localUser.Authenticate((bool success) => {
            if (success)
            {

                GoogleStatusText.text = "Google Signed In";
                var serverAuthCode = PlayGamesPlatform.Instance.GetServerAuthCode();
                Debug.Log("Server Auth Code: " + serverAuthCode);

                PlayFabClientAPI.LoginWithGoogleAccount(new LoginWithGoogleAccountRequest()
                {
                    TitleId = PlayFabSettings.TitleId,
                    ServerAuthCode = serverAuthCode,
                    CreateAccount = true
                }, (result) =>
                {
                    GoogleStatusText.text = "Signed In as " + result.PlayFabId;

                }, OnPlayFabError);
            }
            else
            {
                GoogleStatusText.text = "Google Failed to Authroize your login";
            }

        });