根据教程不起作用 - ruby​​mine黄瓜rspec

Question

我根据一些教程创建了两个文件（我现在找不到） 首先是步骤：

Given(/^: i am on "([^"]*)"$/) do |path_to|
  visit path_to # Write code here that turns the phrase above into concrete actions
end

When(/^: I type ".*?" in search field$/) do |string_search|
  TXT_SEARCH= ".//*[@id='masthead-search-term']" # Write code here that turns the phrase above into concrete actions
  BTN_SEARCH= ".//*[@id='search-btn']"
  find(:xpath,TXT_SEARCH).set string_search
  find(:xpath,BTN_SEARCH).click
end

Then(/^: i should see install cucumber$/) do |string_expectation|
  page.should have_content string_expectation # Write code here that turns the phrase above into concrete actions
end

，第二个是功能

Feature: as a consumer, i want to search th in yt

Scenario: search dth on yt
  Given : i am on "http://youtube.com"
  When : I type install cucumber in search field
  Then : i should see install cucumber

但是当我尝试运行它时不起作用..我收到了错误

  

您可以使用以下代码段实现未定义步骤的步骤定义：

     

给（/ ^：我在＆＃34;（[^＆＃34;] *）＆＃34; $ /）do | arg1 |   （...）

为什么呢？一切都像在YT