No route matches [GET] "/users/sign_out"

Here is my actual error: No route matches [GET] "/members/sign_out" Since most people will use "users" I thought it would be more helpful to have that in the title. At any rate, I am essential unable to logout. I can successfully edit my member profile.

I am using devise 1.4.2 and Rails 3.1.0.rc4. Also, I have generated two separate devise models - one called "members" and the other called "admins". I was able to register and log into both of them (simultaneously) by manually navigating to the correct URL path (i.e., localhost:3000/admins/sign_in/). I created some links within my application.html.haml layout file by following this RailsCast on Devise. I am aware that it only addresses signin/signout links for "members."

If I click on the signout link I get the above error. This occurs if I manually navigate to either signout URL (i.e., localhost:3000/admins/sign_out/).

Can someone tell me why this is happening? Below are the various related files. And of course, I'm a newbie...

rake routes output:

    j(film_repo)$ rake routes
        new_member_session GET    /members/sign_in(.:format)       {:action=>"new", :controller=>"devise/sessions"}
            member_session POST   /members/sign_in(.:format)       {:action=>"create", :controller=>"devise/sessions"}
    destroy_member_session DELETE /members/sign_out(.:format)      {:action=>"destroy", :controller=>"devise/sessions"}
           member_password POST   /members/password(.:format)      {:action=>"create", :controller=>"devise/passwords"}
       new_member_password GET    /members/password/new(.:format)  {:action=>"new", :controller=>"devise/passwords"}
      edit_member_password GET    /members/password/edit(.:format) {:action=>"edit", :controller=>"devise/passwords"}
                           PUT    /members/password(.:format)