Cómo importar contactos desde gmail

Hola eh usado la gema onmicontacts para importar los contactos desde
gmail

pero me da el siguiente error:

Started GET “/contacts/callback” for 127.0.0.1 at 2014-08-04 16:41:01
-0300
Error not_authorized while processing /contacts/callback: User did not
grant access to contacts list

Started GET
“/contacts/failure?error_message=not_authorized&importer=gmail” for
127.0.0.1 at 2014-08-04 16:41:01 -0300
Processing by InvitesController#failure as HTML
Parameters: {“error_message”=>“not_authorized”, “importer”=>“gmail”}
Rendered invites/failure.html.erb within layouts/application (0.4ms)
User Load (0.1ms) SELECT “users”.* FROM “users” WHERE “users”.“id” =
? LIMIT 1 [[“id”, 1]]

Alguna idea?

Desde ya muchas gracias!