如何解决Capybara :: ElementNotFound错误

我遇到了以下问题,这是我第一次使用水豚,请你知道如何解决这个问题,谢谢

我使用rails 3.0.0和以下gem

gem 'rails', '3.0.0' gem 'capybara' gem 'database_cleaner' gem 'cucumber-rails' gem 'cucumber' gem 'rspec-rails' gem 'spork' gem 'launchy' 

我在Senario中有以下内容

 When I go to the new customer page And I fill in "Email" with "john@example.com" 

在我的customer_steps.rb我有

 When /^I fill in "([^"]*)" with "([^"]*)"$/ do |arg1, arg2| fill_in arg1, :with => arg2 end 

在我看来

 - form_for @customer do |f| = f.label :email, 'Email' = f.text_field :email = f.submit 

当我运行我的方案时,我收到此错误消息

  Scenario: Register new customer # features/manage_customers.feature:7 When I go to the new customer page # features/step_definitions/customer_steps.rb:1 And I fill in "Email" with "john@example.com" # features/step_definitions/customer_steps.rb:5 cannot fill in, no text field, text area or password field with id, name, or label 'Email' found (Capybara::ElementNotFound) ./features/step_definitions/customer_steps.rb:6:in `/^I fill in "([^"]*)" with "([^"]*)"$/' features/manage_customers.feature:9:in `And I fill in "Email" with "john@example.com"' 

我发现了我的错!

 When I go to the new customer page 

在这一步之前

 When /^I go to (.+)$/ do |page_name| path_to page_name end 

我忘记了访问…

 When /^I go to (.+)$/ do |page_name| visit path_to(page_name) end 

使用该字段的id,应该是这样的

我用“john@example.com”填写“customer_email”

如果@customer是对象客户模型