部分页面报Cannot read property 'map' of undefined

[左鱼子]

有些页面报错，有些不会；麻烦帮忙看看@Taro-小助手-honly

Cannot read property 'map' of undefined; [Component] Lifetime Method Error @ pages/subPages/order/pages/confirmorder/confirmorder#attached
TypeError: Cannot read property 'map' of undefined

localhost:taroConvert pgp$ taro info
👽 Taro v2.0.2


  Taro CLI 2.0.2 environment info:
    System:
      OS: macOS 10.15.2
      Shell: 3.2.57 - /bin/bash
    Binaries:
      Node: 12.14.0 - /usr/local/bin/node
      Yarn: 1.21.1 - /usr/local/bin/yarn
      npm: 6.13.6 - /usr/local/bin/npm
    npmPackages:
      @tarojs/components: 2.0.2 => 2.0.2 
      @tarojs/components-qa: 2.0.2 => 2.0.2 
      @tarojs/mini-runner: 2.0.2 => 2.0.2 
      @tarojs/router: 2.0.2 => 2.0.2 
      @tarojs/taro: 2.0.2 => 2.0.2 
      @tarojs/taro-alipay: 2.0.2 => 2.0.2 
      @tarojs/taro-h5: 2.0.2 => 2.0.2 
      @tarojs/taro-qq: 2.0.2 => 2.0.2 
      @tarojs/taro-quickapp: 2.0.2 => 2.0.2 
      @tarojs/taro-rn: 2.0.2 => 2.0.2 
      @tarojs/taro-swan: 2.0.2 => 2.0.2 
      @tarojs/taro-tt: 2.0.2 => 2.0.2 
      @tarojs/taro-weapp: 2.0.2 => 2.0.2 
      @tarojs/webpack-runner: 2.0.2 => 2.0.2 
      eslint-config-taro: 2.0.2 => 2.0.2 
      eslint-plugin-taro: 2.0.2 => 2.0.2 
      nerv-devtools: ^1.5.6 => 1.5.6 
      nervjs: ^1.5.6 => 1.5.6 
      stylelint-config-taro-rn: 2.0.2 => 2.0.2 
      stylelint-taro-rn: 2.0.2 => 2.0.2 
    npmGlobalPackages:
      typescript: 3.7.4

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[Taro 小助手 - honly]

@左鱼子 你map的那个元素初始化一下咯，赋个值