When trying to edit the admin user at http://localhost:3000/admin/users/1/edit I get the following error:

Unknown action

No action responded to edit. Actions: access_denied, activate, active, check_roles, create, deleted, destroy, index, new, pending, purge, reset_password, role_requirements, role_requirements=, s, set_user_email, set_user_login, show, suspend, suspended, and unsuspend

Thanks,
Mark