Heroku - 找不到页面 - 我想我已经设置了根路由

我正在关注本教程，但是当我部署到heroku并使用命令heroku open时，我得到“您正在查找的页面不存在。 “我一直在阅读，似乎每个人的问题都没有设置根路线。我将这行添加到我的config/routes.rb文件的开始部分：Heroku - 找不到页面 - 我想我已经设置了根路由

root 'users#index'

但现在可用。我承诺了，推到了heroku，并且也在之后迁移了db。有任何想法吗？

class UsersController < ApplicationController 
    before_action :set_user, only: [:show, :edit, :update, :destroy] 

    # GET /users 
    # GET /users.json 
    def index 
    @users = User.all 
    end 

    # GET /users/1 
    # GET /users/1.json 
    def show 
    end 

    # GET /users/new 
    def new 
    @user = User.new 
    end 

    # GET /users/1/edit 
    def edit 
    end 

    # POST /users 
    # POST /users.json 
    def create 
    @user = User.new(user_params) 

    respond_to do |format| 
     if @user.save 
     format.html { redirect_to @user, notice: 'User was successfully created.' } 
     format.json { render action: 'show', status: :created, location: @user } 
     else 
     format.html { render action: 'new' } 
     format.json { render json: @user.errors, status: :unprocessable_entity } 
     end 
    end 
    end 

    # PATCH/PUT /users/1 
    # PATCH/PUT /users/1.json 
    def update 
    respond_to do |format| 
     if @user.update(user_params) 
     format.html { redirect_to @user, notice: 'User was successfully updated.' } 
     format.json { head :no_content } 
     else 
     format.html { render action: 'edit' } 
     format.json { render json: @user.errors, status: :unprocessable_entity } 
     end 
    end 
    end 

    # DELETE /users/1 
    # DELETE /users/1.json 
    def destroy 
    @user.destroy 
    respond_to do |format| 
     format.html { redirect_to users_url } 
     format.json { head :no_content } 
    end 
    end 

    private 
    # Use callbacks to share common setup or constraints between actions. 
    def set_user 
     @user = User.find(params[:id]) 
    end 

    # Never trust parameters from the scary internet, only allow the white list through. 
    def user_params 
     params.require(:user).permit(:name, :email) 
    end 
end

也许我没有正确创建它们？大写字母还是什么？

这里是我的routes.rb：

DemoApp::Application.routes.draw do 

    root 'users#index' 

    resources :microposts 

    resources :users 

    # The priority is based upon order of creation: first created -> highest priority. 
    # See how all your routes lay out with "rake routes". 

    # You can have the root of your site routed with "root" 
    # root 'welcome#index' 

    # Example of regular route: 
    # get 'products/:id' => 'catalog#view' 

    # Example of named route that can be invoked with purchase_url(id: product.id) 
    # get 'products/:id/purchase' => 'catalog#purchase', as: :purchase 

    # Example resource route (maps HTTP verbs to controller actions automatically): 
    # resources :products 

    # Example resource route with options: 
    # resources :products do 
    #  member do 
    #  get 'short' 
    #  post 'toggle' 
    #  end 
    # 
    #  collection do 
    #  get 'sold' 
    #  end 
    # end 

    # Example resource route with sub-resources: 
    # resources :products do 
    #  resources :comments, :sales 
    #  resource :seller 
    # end 

    # Example resource route with more complex sub-resources: 
    # resources :products do 
    #  resources :comments 
    #  resources :sales do 
    #  get 'recent', on: :collection 
    #  end 
    # end 

    # Example resource route with concerns: 
    # concern :toggleable do 
    #  post 'toggle' 
    # end 
    # resources :posts, concerns: :toggleable 
    # resources :photos, concerns: :toggleable 

    # Example resource route within a namespace: 
    # namespace :admin do 
    #  # Directs /admin/products/* to Admin::ProductsController 
    #  # (app/controllers/admin/products_controller.rb) 
    #  resources :products 
    # end 
end

这里是我的Heroku的日志：

2014-02-07T08:00:40.454762+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/routing/route_set.rb:680:in `call' 
2014-02-07T08:00:40.454530+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/inflector/methods.rb:224:in `each' 
2014-02-07T08:00:40.454530+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/inflector/methods.rb:226:in `block in constantize' 
2014-02-07T08:00:40.454762+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/journey/router.rb:59:in `call' 
2014-02-07T08:00:40.454762+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/journey/router.rb:59:in `each' 
2014-02-07T08:00:40.454762+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/journey/router.rb:71:in `block in call' 
2014-02-07T08:00:40.454530+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/routing/route_set.rb:66:in `controller' 
2014-02-07T08:00:40.454762+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/head.rb:11:in `call' 
2014-02-07T08:00:40.454530+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/routing/route_set.rb:44:in `call' 
2014-02-07T08:00:40.454530+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/routing/route_set.rb:76:in `controller_reference' 
2014-02-07T08:00:40.454762+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/conditionalget.rb:25:in `call' 
2014-02-07T08:00:40.454935+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:626:in `call' 
2014-02-07T08:00:40.454762+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/session/abstract/id.rb:225:in `context' 
2014-02-07T08:00:40.454762+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/flash.rb:241:in `call' 
2014-02-07T08:00:40.454762+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/params_parser.rb:27:in `call' 
2014-02-07T08:00:40.454935+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/cookies.rb:486:in `call' 
2014-02-07T08:00:40.454762+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/etag.rb:23:in `call' 
2014-02-07T08:00:40.454935+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
2014-02-07T08:00:40.454935+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/query_cache.rb:36:in `call' 
2014-02-07T08:00:40.454935+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/callbacks.rb:80:in `run_callbacks' 
2014-02-07T08:00:40.454935+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/callbacks.rb:373:in `_run__3113425911459750945__call__callbacks' 
2014-02-07T08:00:40.455521+00:00 app[web.1]: vendor/bundle/rub 
y/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/request_id.rb:21:in `call' 
2014-02-07T08:00:40.455714+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/cache/strategy/local_cache.rb:83:in `call' 
2014-02-07T08:00:40.454935+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' 
2014-02-07T08:00:40.454935+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call' 
2014-02-07T08:00:40.455521+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/tagged_logging.rb:67:in `tagged' 
2014-02-07T08:00:40.455521+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/runtime.rb:17:in `call' 
2014-02-07T08:00:40.455521+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.0.2/lib/rails/rack/logger.rb:20:in `block in call' 
2014-02-07T08:00:40.455714+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/content_length.rb:14:in `call' 
2014-02-07T08:00:40.455714+00:00 app[web.1]: vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run' 
2014-02-07T08:00:40.455714+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/static.rb:64:in `call' 
2014-02-07T08:00:40.455521+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.0.2/lib/rails/rack/logger.rb:20:in `call' 
2014-02-07T08:00:40.455521+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/methodoverride.rb:21:in `call' 
2014-02-07T08:00:40.456085+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/inflector/methods.rb:224:in `each' 
2014-02-07T08:00:40.456085+00:00 app[web.1]: vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread' 
2014-02-07T08:00:40.456085+00:00 app[web.1]: ActionController::RoutingError (uninitialized constant UsersController): 
2014-02-07T08:00:40.455714+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/sendfile.rb:112:in `call' 
2014-02-07T08:00:40.455714+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.0.2/lib/rails/application.rb:97:in `call' 
2014-02-07T08:00:40.456085+00:00 app[web.1]: 
2014-02-07T08:00:40.455714+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.0.2/lib/rails/e 
ngine.rb:511:in `call' 
2014-02-07T08:00:40.455714+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/lock.rb:17:in `call' 
2014-02-07T08:00:40.456270+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/routing/route_set.rb:76:in `controller_reference' 
2014-02-07T08:00:40.456085+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/inflector/methods.rb:224:in `inject' 
2014-02-07T08:00:40.456270+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/routing/route_set.rb:44:in `call' 
2014-02-07T08:00:40.455714+00:00 app[web.1]: vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service' 
2014-02-07T08:00:40.456085+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/inflector/methods.rb:224:in `constantize' 
2014-02-07T08:00:40.456085+00:00 app[web.1]: 
2014-02-07T08:00:40.456085+00:00 app[web.1]: 
2014-02-07T08:00:40.455714+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/handler/webrick.rb:60:in `service' 
2014-02-07T08:00:40.456655+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/flash.rb:241:in `call' 
2014-02-07T08:00:40.456270+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/journey/router.rb:59:in `each' 
2014-02-07T08:00:40.456270+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/journey/router.rb:71:in `block in call' 
2014-02-07T08:00:40.456270+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/conditionalget.rb:25:in `call' 
2014-02-07T08:00:40.456270+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/head.rb:11:in `call' 
2014-02-07T08:00:40.456270+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/routing/route_set.rb:66:in `controller' 
2014-02-07T08:00:40.456270+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/etag.rb:23:in `call' 
2014-02-07T08:00:40.456655+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/session/abstract/id.rb:220:in `call' 
2014-02-07T08:00:40.456655+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/cookies.rb:486:in `call' 
2014-02-07T08:00:40.456655+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/callbacks.rb:80:in `run_callbacks' 
2014-02-07T08:00:40.456655+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/params_parser.rb:27:in `call' 
2014-02-07T08:00:40.456655+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/callbacks.rb:373:in `_run__3113425911459750945__call__callbacks' 
2014-02-07T08:00:40.456655+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/session/abstract/id.rb:225:in `context' 
2014-02-07T08:00:40.456655+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:626:in `call' 
2014-02-07T08:00:40.456655+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/query_cache.rb:36:in `call' 
2014-02-07T08:00:40.456850+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/tagged_logging.rb:67:in `block in tagged' 
2014-02-07T08:00:40.456850+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/tagged_logging.rb:25:in `tagged' 
2014-02-07T08:00:40.456850+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
2014-02-07T08:00:40.456850+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call' 
2014-02-07T08:00:40.456850+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/remote_ip.rb:76:in `call' 
2014-02-07T08:00:40.456850+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.0.2/lib/rails/rack/logger.rb:20:in `block in call' 
2014-02-07T08:00:40.456655+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' 
2014-02-07T08:00:40.457227+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/methodoverride.rb:21:in `call' 
2014-02-07T08:00:40.457227+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/runtime.rb:17:in `call' 
2014-02-07T08:00:40.457227+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/lock.rb:17:in `call' 
2014-02-07T08:00:40.457227+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/cache/strategy/local_cache.rb:83:in `call' 
2014-02-07T08:00:40.457227+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/sendfile.rb:112:in `call' 
2014-02-07T08:00:40.457227+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/request_id.rb:21:in `call' 
2014-02-07T08:00:40.457227+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/static.rb:64:in `call' 
2014-02-07T08:00:40.454935+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/remote_ip.rb:76:in `call' 
2014-02-07T08:00:40.454935+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/session/abstract/id.rb:220:in `call' 
2014-02-07T08:00:40.458180+00:00 app[web.1]: 
2014-02- 
07T08:00:40.457227+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/content_length.rb:14:in `call' 
2014-02-07T08:00:40.458180+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/handler/webrick.rb:60:in `service' 
2014-02-07T08:00:40.458180+00:00 app[web.1]: vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service' 
2014-02-07T08:00:40.458180+00:00 app[web.1]: vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run' 
2014-02-07T08:00:40.455521+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.0.2/lib/rails/rack/logger.rb:38:in `call_app' 
2014-02-07T08:00:40.455521+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call' 
2014-02-07T08:00:40.455521+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/tagged_logging.rb:67:in `block in tagged' 
2014-02-07T08:00:40.455521+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/tagged_logging.rb:25:in `tagged' 
2014-02-07T08:00:40.456085+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/inflector/methods.rb:226:in `const_get' 
2014-02-07T08:00:40.456085+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/inflector/methods.rb:226:in `block in constantize' 
2014-02-07T08:00:40.456270+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/journey/router.rb:59:in `call' 
2014-02-07T08:00:40.456270+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/routing/route_set.rb:680:in `call' 
2014-02-07T08:00:40.456850+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.0.2/lib/rails/rack/logger.rb:38:in `call_app' 
2014-02-07T08:00:40.456850+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.2/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call' 
2014-02-07T08:00:40.456850+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.0.2/lib/rails/rack/logger.rb:20:in `call' 
2014-02-07T08:00:40.456850+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/tagged_logging.rb:67:in `tagged' 
2014-02-07T08:00:40.457227+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.0.2/lib/rails/application.rb:97:in `call' 
2014-02-07T08:00:40.457227+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/railties-4.0.2/lib/rails/engine.rb:511:in `call' 
2014-02-07T08:00:40.458180+00:00 app[web.1]: 
2014-02-07T08:00:40.458180+00:00 app[web.1]: vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread'

来源

2014-02-07 mharris7190

嗯...所以不是那么...... –

我知道这是一个很大的代码，但你能发表您的routes.rb？您可以删除控制器，因为这没有用。我假设粘贴的控制器代码中只有一个'''end''，它在实际代码中存在。 –

是的，我觉得我清除了所有正常的错误。但是为什么我仍然得到ActionController :: RoutingError（未初始化的常量UsersController）：在日志中 – mharris7190

我犯和推动，现在一切工作之前跑

rake assets:precompile

。 GAW！：P

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2014-02-07 09:00:06 mharris7190

中添加UsersController这不会解决问题中所描述的问题 - 某事否则一定发生了。我建议你删除这个答案（或问题，完全），因为它保证低调，国际海事组织。 – zeantsoi

每当我忘记预编译新项目的资产时，我总是得到相同的错误。在我记得预编译之后，它可以工作...... – mharris7190

它告诉你有没有UsersController - 你设置呢？

2014-02-07T08:00:40.456085+00:00 app[web.1]: ActionController::RoutingError (uninitialized constant UsersController):

我看你有没有文件 - 但有就行

class UsersController << ApplicationController

或类似的东西一个错字。未初始化的常量意味着由于某种原因，在这种情况下没有加载常量 - 类或模块 - 称为UsersController。通常这只是一个错字或丢失的文件。

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2014-02-07 08:13:28

是啊，我会在 – mharris7190

之上添加一个修改你能粘贴UsersController的代码吗？在'''类UsersController << ApplicationController'''行中是否有错字？ –

是否有索引方法m/d内部用户控制器 –

用户控制器中的此类名称可能拼写错误。它可能应该是这样的：

class UsersController < ApplicationController 
end

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2014-02-07 08:26:42 Dandan

Heroku - 找不到页面 - 我想我已经设置了根路由

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