Karate 定位器查找显示ReferenceError:"；“家”；未在<；中定义**；评估>；

下面是objects文件夹下的my locators.json文件

{
  "home": {
    "signInButton": "//div[@id='root']/main/button/span",
    "selectLanguage": "//div[@id='root']/main/div/a/span"
  }
}

我在功能文件中尝试了以下代码。但我收到错误“javascript求值失败：waitFor（home.signInButton）。单击（），ReferenceError:“home”未在中定义”

  Background:
    configure driver = { type: 'chromedriver', showDriverLog: true }
    call read('classpath:objects/locators.json')

  Scenario: Login my app
  Given driver 'http://example.com/'
  And waitFor(home.signInButton).click()

我试过下面的代码也仍然有问题

  Background:
    configure driver = { type: 'chromedriver', showDriverLog: true }
    def myObj = call read('classpath:objects/locators.json')

  Scenario: Login my app
  Given driver 'http://example.com/'
  And waitFor(myObj.home.signInButton).click()

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仔细阅读文件：（见最后一行）

应该是：

* call read 'classpath:objects/locators.json'