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Ruby on rails Heroku-找不到获取页面-我想我也设置了根路径

ruby-on-rails ruby git heroku

Ruby on rails Heroku-找不到获取页面-我想我也设置了根路径,ruby-on-rails,ruby,git,heroku,Ruby On Rails,Ruby,Git,Heroku,我遵循本教程，但当我部署到heroku并使用命令heroku open时，我得到了“您要查找的页面不存在”。我一直在阅读，似乎每个人的问题都涉及到没有设置根路由。我在config/routes.rb文件的开头添加了这一行： root 'users#index' 但现在有用了。我承诺，推到heroku，并在之后迁移了db。有什么想法吗 class UsersController < ApplicationController before_action :set_user, only:

我遵循本教程，但当我部署到heroku并使用命令
heroku open
时，我得到了“您要查找的页面不存在”。我一直在阅读，似乎每个人的问题都涉及到没有设置根路由。我在config/routes.rb文件的开头添加了这一行：

root 'users#index'
但现在有用了。我承诺，推到heroku，并在之后迁移了db。有什么想法吗

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
这是我的heroku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'
它告诉你没有用户控制器-你设置好了吗

2014-02-07T08:00:40.456085+00:00 app[web.1]: ActionController::RoutingError (uninitialized constant UsersController):
我看你有这个文件，但是这行有打字错误吗

class UsersController << ApplicationController

class UsersController用户控制器中的此类名可能拼写错误。可能应该是这样的：


class UsersController < ApplicationController
end



class UsersController
我跑了


rake资产：预编译


在承诺和推动之前，现在一切都正常。哎呀！！：P
您可以从UsersController粘贴代码吗？
类用户控制器中是否有输入错误用户控制器中是否有索引方法m/d
未初始化的常量用户控制器
与
#index
方法无关-更常见的是类似于
类用户控制器
之类的输入错误。。。至少这是我经常犯的错误，导致了这个错误。我将在OPHmm中添加UsersController。。。所以不是那样的…我知道代码很多，但是你能发布你的路线吗？您可以删除控制器，因为它没有帮助。我假设粘贴的控制器代码中只缺少一个
结尾
，而真实代码中也有。是的，我觉得我清除了所有常见的bug。但是，为什么我仍然得到ActionController:：RoutingError（未初始化的常量UsersController）：在日志中-只是为了解决这些愚蠢的问题-您肯定已经提交了添加UsersController并将代码推送到Heroku的更改，而不只是在本地进行更改。。。实际上，当您运行
rails s
并查看localhost时，这是否在本地起作用？我实际上同时使用了这两种方法，但两种方法都不起作用。git-a-m“”只是git add的简写。然后git commit-m“”这将无法解决问题中所述的问题–肯定发生了其他事情。我建议您删除这个答案（或问题），因为它保证了否决权，IMO。每当我忘记在新项目上预编译资产时，我总是会遇到同样的错误。在我记得预编译之后，它就开始工作了。。。

class UsersController < ApplicationController
end