The redirect URI in the request, http://rms.rhomobile.com/auth/google_oauth2/callback, 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/280771918605-c17bfcn6upi4frc4k9drs3md5j4tve24.apps.googleusercontent.com?project=280771918605