得到一個錯誤的路由從某些網頁

Question

我有這條路線

profile GET /contacts/:id(.:format) {:controller=>"my_devise/contacts", :action=>"profile"}

這是我的控制器/ application_controller.rb

class ApplicationController < ActionController::Base 
    protect_from_forgery 

    before_filter :get_current_user 

    def get_current_user 
     @current_user = current_user 
    end 

end 

，如果我有我的看法/佈局/應用此鏈接.html.erb文件<%= link_to "Profile", profile_path(@current_user) %>的網址http://localhost:3000/contacts/1，我沒有錯誤，但是如果我嘗試點擊網址http://localhost:3000/contacts，我得到下面的錯誤

Routing Error 

No route matches {:controller=>"my_devise/contacts", :action=>"profile"} 

如果我刪除我的application.html.erb文件中的鏈接並點擊http://localhost:3000/contacts，錯誤消失。

爲什麼該鏈接會導致此錯誤？

編輯

完全routes文件

$ rake routes 
      users_sign_out GET /users/sign_out(.:format)  {:controller=>"devise/sessions", :action=>"destroy"} 
      users_sign_in GET /users/sign_in(.:format)  {:controller=>"my_devise/sessions", :action=>"new"} 
        home GET /home(.:format)    {:action=>"index", :controller=>"my_devise/sessions"} 
       contacts GET /contacts(.:format)   {:action=>"list", :controller=>"my_devise/contacts"} 
       profile GET /contacts/:id(.:format)  {:controller=>"my_devise/contacts", :action=>"profile"} 
      edit_profile GET /contacts/:id/edit(.:format) {:controller=>"my_devise/contacts", :action=>"edit"} 
         POST /contacts/:id/edit(.:format) {:controller=>"my_devise/contacts", :action=>"update_user"} 
        more GET /more/:id(.:format)   {:controller=>"my_devise/contacts", :action=>"more"} 
         POST /home(.:format)    {:action=>"create_new_user", :controller=>"my_devise/sessions"} 
      users_sign_up GET /users/sign_up(.:format)  {:controller=>"my_devise/registrations", :action=>"new"} 
         POST /users/sign_up(.:format)  {:controller=>"my_devise/registrations", :action=>"new"} 
     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"} 
     new_user_session GET /users/sign_in(.:format)  {:action=>"new", :controller=>"my_devise/sessions"} 
         POST /users/sign_in(.:format)  {:action=>"create", :controller=>"my_devise/sessions"} 
    destroy_user_session DELETE /users/sign_out(.:format)  {:action=>"destroy", :controller=>"my_devise/sessions"} 
         POST /users/password(.:format)  {:action=>"create", :controller=>"devise/passwords"} 
         GET /users/password/new(.:format) {:action=>"new", :controller=>"devise/passwords"} 
         GET /users/password/edit(.:format) {:action=>"edit", :controller=>"devise/passwords"} 
         PUT /users/password(.:format)  {:action=>"update", :controller=>"devise/passwords"} 
         GET /users/cancel(.:format)  {:action=>"cancel", :controller=>"my_devise/registrations"} 
         POST /users(.:format)    {:action=>"create", :controller=>"my_devise/registrations"} 
         GET /users/sign_up(.:format)  {:action=>"new", :controller=>"my_devise/registrations"} 
         GET /users/edit(.:format)   {:action=>"edit", :controller=>"my_devise/registrations"} 
         PUT /users(.:format)    {:action=>"update", :controller=>"my_devise/registrations"} 
         DELETE /users(.:format)    {:action=>"destroy", :controller=>"my_devise/registrations"} 
       home_index GET /home/index(.:format)   {:controller=>"home", :action=>"index"} 
        root  /       {:controller=>"home", :action=>"index"} 
        root  /       {:controller=>"home", :action=>"index"} 

Answer 1

爲了回答您的實際問題，那是因爲你沒有爲該路由（/contacts - 注意無ID）。你的路線是/contacts/:id(.:format) - 格式是可選的，但ID不是。您還需要使ID可選，或創建另一條路線。

Answer 2

的路由是這樣的

觸點GET /contacts(.:format）{：行動=> 「清單」，：控制器=> 「my_devise /接觸」}

在這裏，我們必須給格式也。如果我們給聯繫人，它會拋出路由錯誤。所以請輸入格式。