The redirect URI in the request, http://smeha.co/complete/google-oauth2/, does not match the ones authorized for the OAuth client. To update the authorized redirect URIs, visit: https://console.developers.google.com/apis/credentials/oauthclient/204572554363-nhriuko8ps1q7kinvv236jcueqj0h8f2.apps.googleusercontent.com?project=204572554363