Access blocked: GYB has not completed the Google verification process

[alanmuntadas]

during the authentification process for a @gmail.com account, (Most recent version - i installed it 20 minutes ago) I am getting the following error.

GYB has not completed the Google verification process. The app is currently being tested, and can only be accessed by developer-approved testers. If you think you should have access, contact the [developer]

Error 403: access_denied
Request details: access_type=offline login_hint=****@gmail.com response_type=code redirect_uri=http://127.0.0.1:8080/ state=Xb#####Gqo code_challenge_method=S256 client_id=45######1-s4######t code_challenge=h#####rc scope=https://www.googleapis.com/auth/userinfo.email https://mail.google.com/ https://www.googleapis.com/auth/apps.groups.migration https://www.googleapis.com/auth/drive.appdata openid flowName=GeneralOAuthFlow

What am i doing wrong? thanks for your feedback

[alanmuntadas]

Solution : add the @gmail.com account as a test user in the OAuth Consent Screen process.