routes.rb =>
devise_for :users
resources :posts
match "posts/:id/categ" => "posts#categ"
match "posts/:id/tag_posts" => "posts#tag_posts"
match "posts/searcharchive" => "posts#searcharchive"
#post "posts/searcharchive"
resources :categories
resources :comments
resources :countpages
rake routes =>
new_user_session GET /users/sign_in(.:format) {:action=>"new", :controller=>"devise/sessions"}
user_session POST /users/sign_in(.:format) {:action=>"create", :controller=>"devise/sessions"}
destroy_user_session DELETE /users/sign_out(.:format) {:action=>"destroy", :controller=>"devise/sessions"}
user_password POST /users/password(.:format) {:action=>"create", :controller=>"devise/passwords"}
new_user_password GET /users/password/new(.:format) {:action=>"new", :controller=>"devise/passwords"}
edit_user_password GET /users/password/edit(.:format) {:action=>"edit", :controller=>"devise/passwords"}
PUT /users/password(.:format) {:action=>"update", :controller=>"devise/passwords"}
cancel_user_registration GET /users/cancel(.:format) {:action=>"cancel", :controller=>"devise/registrations"}
user_registration POST /users(.:format) {:action=>"create", :controller=>"devise/registrations"}
new_user_registration GET /users/sign_up(.:format) {:action=>"new", :controller=>"devise/registrations"}
edit_user_registration GET /users/edit(.:format) {:action=>"edit", :controller=>"devise/registrations"}
PUT /users(.:format) {:action=>"update", :controller=>"devise/registrations"}
DELETE /users(.:format) {:action=>"destroy", :controller=>"devise/registrations"}
posts GET /posts(.:format) {:action=>"index", :controller=>"posts"}
POST /posts(.:format) {:action=>"create", :controller=>"posts"}
new_post GET /posts/new(.:format) {:action=>"new", :controller=>"posts"}
edit_post GET /posts/:id/edit(.:format) {:action=>"edit", :controller=>"posts"}
post GET /posts/:id(.:format) {:action=>"show", :controller=>"posts"}
PUT /posts/:id(.:format) {:action=>"update", :controller=>"posts"}
DELETE /posts/:id(.:format) {:action=>"destroy", :controller=>"posts"}
/posts/:id/categ(.:format) {:controller=>"posts", :action=>"categ"}
/posts/:id/tag_posts(.:format) {:controller=>"posts", :action=>"tag_posts"}
posts_searcharchive /posts/searcharchive(.:format) {:controller=>"posts", :action=>"searcharchive"}
categories GET /categories(.:format) {:action=>"index", :controller=>"categories"}
POST /categories(.:format) {:action=>"create", :controller=>"categories"}
new_category GET /categories/new(.:format) {:action=>"new", :controller=>"categories"}
edit_category GET /categories/:id/edit(.:format) {:action=>"edit", :controller=>"categories"}
category GET /categories/:id(.:format) {:action=>"show", :controller=>"categories"}
PUT /categories/:id(.:format) {:action=>"update", :controller=>"categories"}
DELETE /categories/:id(.:format) {:action=>"destroy", :controller=>"categories"}
comments GET /comments(.:format) {:action=>"index", :controller=>"comments"}
POST /comments(.:format) {:action=>"create", :controller=>"comments"}
new_comment GET /comments/new(.:format) {:action=>"new", :controller=>"comments"}
edit_comment GET /comments/:id/edit(.:format) {:action=>"edit", :controller=>"comments"}
comment GET /comments/:id(.:format) {:action=>"show", :controller=>"comments"}
PUT /comments/:id(.:format) {:action=>"update", :controller=>"comments"}
DELETE /comments/:id(.:format) {:action=>"destroy", :controller=>"comments"}
countpages GET /countpages(.:format) {:action=>"index", :controller=>"countpages"}
POST /countpages(.:format) {:action=>"create", :controller=>"countpages"}
new_countpage GET /countpages/new(.:format) {:action=>"new", :controller=>"countpages"}
edit_countpage GET /countpages/:id/edit(.:format) {:action=>"edit", :controller=>"countpages"}
countpage GET /countpages/:id(.:format) {:action=>"show", :controller=>"countpages"}
PUT /countpages/:id(.:format) {:action=>"update", :controller=>"countpages"}
DELETE /countpages/:id(.:format) {:action=>"destroy", :controller=>"countpages"}
root / {:controller=>"posts", :action=>"index"}
links =>
<% if user_signed_in? %>
<%= link_to('Logout', destroy_user_session_path, :method => 'delete') %>
<%= link_to 'Add Post', :controller=>'/posts', :action=>'new' %>
<%= link_to 'Add Category', :controller=>'/categories', :action=>'new' %>
<%= link_to 'Display ategories', :controller=>'/categories', :action=>'index' %>
<% else %>
<%= link_to('Login', new_user_session_path) %>
<% end %>
http://0.0.0.0:3000/users/sign_out
=>
Error =>
Routing Error
No route matches [GET] "/users/sign_out"
What should i do ?