Ruby on rails heroku ActionView:：Template:：Error（未定义的方法`email'；

我一直在尝试在heroku上部署一个应用程序，但遇到了很多问题。我当前的问题是，在注册时，我收到一个未定义的方法，声称电子邮件不是Mate对象的已定义函数。我已经运行了

heroku run rake db:migrate

及

这似乎无法解决问题。此外，当我进入heroku终端并查看新的Mate对象时，它具有电子邮件属性。以下是我的heroku日志：

2013-07-14T22:38:29.637842+00:00 app[web.1]: Processing by HomeController#index as HTML
2013-07-14T22:38:29.650497+00:00 app[web.1]:   Rendered home/index.html.erb within layouts/application (9.1ms)
2013-07-14T22:40:36.729670+00:00 app[web.1]: Started POST "/houses" for 71.202.122.134 at             2013-07-14 22:40:36 +0000
2013-07-14T22:40:36.803157+00:00 app[web.1]: Processing by Houses::RegistrationsController#create as HTML
2013-07-14T22:40:36.803157+00:00 app[web.1]:   Parameters: {"utf8"=>"✓", "authenticity_token"=>"Fsl63CocaqA04/vhoDC0sU/CCSd2YGasqudyCleDNbc=", "house"=>{"address"=>"90 Castro", "city"=>"San Francisco", "email"=>"zyskowski.rob@gmail.com", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]"}, "commit"=>"Sign up"}
2013-07-14T22:40:37.085467+00:00 app[web.1]: Redirected to http://frozen-spire-1369.herokuapp.com/mates/sign_up
2013-07-14T22:40:37.085467+00:00 app[web.1]: Completed 302 Found in 282ms (ActiveRecord: 0.0ms)
2013-07-14T22:40:37.266161+00:00 app[web.1]: Processing by Mates::RegistrationsController#new as HTML
2013-07-14T22:40:37.276199+00:00 app[web.1]:   Rendered mates/registrations/new.html.erb within layouts/application (8.2ms)
2013-07-14T22:40:37.088159+00:00 heroku[router]: at=info method=POST path=/houses host=frozen-spire-1369.herokuapp.com fwd="71.202.122.134" dyno=web.1 connect=1ms service=368ms status=302 bytes=118
2013-07-14T22:40:37.282256+00:00 heroku[router]: at=info method=GET path=/mates/sign_up host=frozen-spire-1369.herokuapp.com fwd="71.202.122.134" dyno=web.1 connect=1ms service=42ms status=500 bytes=643
2013-07-14T22:40:37.278470+00:00 app[web.1]:     24:                     <div class="controls">
2013-07-14T22:40:37.278470+00:00 app[web.1]:     27:                </div>
2013-07-14T22:40:37.278470+00:00 app[web.1]:     28:    
2013-07-14T22:40:37.278470+00:00 app[web.1]: ActionView::Template::Error (undefined method `email' for #<Mate:0x007f2d5d8efc88>):
2013-07-14T22:40:37.278470+00:00 app[web.1]:     23:                     <%= f.label :email, :class => "control-label" %>
2013-07-14T22:40:37.278470+00:00 app[web.1]: 
2013-07-14T22:40:37.256850+00:00 app[web.1]: Started GET "/mates/sign_up" for 71.202.122.134 at 2013-07-14 22:40:37 +0000
2013-07-14T22:40:37.278470+00:00 app[web.1]:   app/views/mates/registrations/new.html.erb:25:in `block in _app_views_mates_registrations_new_html_erb___482835816309687038_69916399610600'
2013-07-14T22:40:37.276313+00:00 app[web.1]: Completed 500 Internal Server Error in 10ms
2013-07-14T22:40:37.278470+00:00 app[web.1]:     22:                 <div class= "control-group">
2013-07-14T22:40:37.278470+00:00 app[web.1]:     25:                          <%= f.text_field :email, :placeholder => "email" , :autofocus => true %>
2013-07-14T22:40:37.278470+00:00 app[web.1]:     26:                     </div>
2013-07-14T22:40:37.278704+00:00 app[web.1]:   app/views/mates/registrations/new.html.erb:9:in `_app_views_mates_registrations_new_html_erb___482835816309687038_69916399610600'
2013-07-14T22:40:37.278704+00:00 app[web.1]: 
2013-07-14T22:40:37.278704+00:00 app[web.1]: 

2013-07-14T22:38:29.637842+00:00应用程序[web.1]：由HomeController处理#索引为HTML
2013-07-14T22:38:29.650497+00:00应用程序[web.1]：在布局/应用程序中呈现home/index.html.erb（9.1ms）
2013-07-14T22:40:36.729670+00:00应用程序[网站1]：于2013-07-14 22:40:36+0000开始发布71.202.122.134的“房屋”
2013-07-14T22:40:36.803157+00:00应用程序[web.1]：房屋处理：：注册控制器#创建为HTML
2013-07-14T22:40:36.803157+00:00应用程序[web.1]：参数：{“utf8”=>“✓", "真实性令牌“=>”Fsl63CocaqA04/vhoDC0sU/CCSd2YGasqudyCleDNbc=“，”房子“=>{”地址“=>”90卡斯特罗“，”城市“=>”旧金山“，”电子邮件“=>”兹斯科夫斯基。rob@gmail.com“，“密码”=>“[筛选]”，“密码确认”=>“[筛选]”}，“提交”=>“注册”}
2013-07-14T22:40:37.085467+00:00应用程序[web.1]：重定向到http://frozen-spire-1369.herokuapp.com/mates/sign_up
2013-07-14T22:40:37.085467+00:00应用程序[web.1]：在282毫秒内完成302次（ActiveRecord:0.0毫秒）
2013-07-14T22:40:37.266161+00:00应用程序[web.1]：Mates处理：：RegistrationsController#新的HTML格式
2013-07-14T22:40:37.276199+00:00应用程序[web.1]：在布局/应用程序中呈现配偶/注册/new.html.erb（8.2ms）
2013-07-14T22:40:37.088159+00:00 heroku[路由器]：at=info-method=POST-path=/houses-host=freezed-spire-1369.herokuapp.com fwd=“71.202.122.134”dyno=web.1 connect=1ms服务=368ms状态=302字节=118
2013-07-14T22:40:37.282256+00:00 heroku[路由器]：at=info method=GET path=/mates/sign\u up host=freezed-spire-1369.herokuapp.com fwd=“71.202.122.134”dyno=web.1 connect=1ms服务=42ms状态=500字节=643
2013-07-14T22:40:37.278470+00:00应用程序[网站1]：24:
2013-07-14T22:40:37.278470+00:00应用程序[网站1]：27:
2013-07-14T22:40:37.278470+00:00应用程序[网站1]：28:
2013-07-14T22:40:37.278470+00:00应用程序[web.1]：ActionView:：Template:：Error（未定义#的“email”方法）：
2013-07-14T22:40:37.278470+00:00应用程序[网站1]：23：“控制标签”%>
2013-07-14T22:40:37.278470+00:00应用程序[网站1]：
2013-07-14T22:40:37.256850+00:00应用程序[web.1]：于2013-07-14 22:40:37+0000开始获得71.202.122.134的“伴侣/注册”
2013-07-14T22:40:37.278470+00:00应用程序[web.1]：app/views/mates/registrations/new.html.erb:25:in ` block in `应用程序视图` mates\registrations\u new\u html\u erb\uu 482835816309687038\u 69916399610600'
2013-07-14T22:40:37.276313+00:00应用程序[web.1]：在10毫秒内完成500个内部服务器错误
2013-07-14T22:40:37.278470+00:00应用程序[网站1]：22:
2013-07-14T22:40:37.278470+00:00应用程序[web.1]：25：“电子邮件”，自动对焦=>true%>
2013-07-14T22:40:37.278470+00:00应用程序[网站1]：26:
2013-07-14T22:40:37.278704+00:00应用程序[web.1]：app/views/mates/registrations/new.html.erb:9:in``应用程序视图\伴侣\注册\新\ html \ erb\ uuuuuuuuu482835816309687038\ u69916399610600'
2013-07-14T22:40:37.278704+00:00应用程序[网站1]：
2013-07-14T22:40:37.278704+00:00应用程序[网站1]：

---

我被困在这里，所以任何想法都很受欢迎！谢谢！

我猜无论你在哪个视图中看到错误，

电子邮件都是空白的。在你的视图中写下如下内容：

<%= @user.email if @user.email? %> 

什么是
Mate
？如何将
email
字段添加到
mates
表中？是否有迁移？迁移是否提交到版本控制？是否将最新提交推送到Heroku？
<%= @user.email if @user.email? %>