rails searchlogic and will_paginate undefined method `order' for #<WillPaginate::Collection:0x37530ac>

Question

Does anyone have the same problem or a working solution? I get always this error message, here are model, controller and view code

class Profile < ActiveRecord::Base
  cattr_reader :per_page
    @@per_page = 10
end

def index
   @search = Profile.search(params[:search])
    @profiles = @search.paginate(:page => params[:page])
  end

<%= will_paginate order @profiles , :by => :created_at, :as => "name" %>

please help, thanks in advance