HarmonyOS 鸿蒙Next跨Ability报错，参照官方代码后仍然报错

import common from '@ohos.app.ability.common’
import Want from ‘@ohos.app.ability.Want’;
import UIAbility from ‘@ohos.app.ability.UIAbility’;

@Entry
@Component
struct Index {
  //1、获取上下文
  private  context=getContext(this) as common.UIAbilityContext
   getInstance() {
   return ‘88888888888888888888’
}
  @State message: string = ‘Hello World1’
  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)
        Button(‘跳转’)
          .onClick(()=>{
            console.log(‘跳转’)
            //2、定义跳转意图
            let want = {
              deviceId: ‘’, // deviceId为空表示本设备
              bundleName: ‘com.example.myapp07’,
              abilityName: ‘TestAbility’,
              moduleName: ‘module1’, // moduleName非必选
              parameters: { // 自定义信息
                instanceKey: this.getInstance(),
              },
            }

            // 3\context为调用方UIAbility的AbilityContext
            this.context.startAbility(want).then(() => {
              // …
            }).catch((err) => {
              // …
            })
          })
      }
      .width(‘100%’)
    }
    .height(‘100%’)
  }
}
编译后报错

05-22 23:55:32.983 I A0c0d0/JSApp: app Log: 跳转

05-22 23:55:32.984 E C03900/Ace: [Engine Log]Lifetime: 0.000000s

05-22 23:55:32.984 E C03900/Ace: [Engine Log]Js-Engine: ark

05-22 23:55:32.984 E C03900/Ace: [Engine Log]page: pages

05-22 23:55:32.984 E C03900/Ace: [Engine Log]Error message: Cannot read property startAbility of undefined

05-22 23:55:32.984 E C03900/Ace: [Engine Log]Cannot get SourceMap info, dump raw stack:

05-22 23:55:32.984 E C03900/Ace: [Engine Log]Stacktrace:

05-22 23:55:32.984 E C03900/Ace: [Engine Log]    at anonymous (entry

---------moudel配置文件

{
  “module”: {
    “name”: “entry”,
    “type”: “entry”,
    “description”: “$string:module_desc”,
    “mainElement”: “EntryAbility”,
    “deviceTypes”: [
      “phone”,
      “tablet”
    ],
    “deliveryWithInstall”: true,
    “installationFree”: false,
    “pages”: “$profile:main_pages”,
    “abilities”: [
      {
        “name”: “EntryAbility”,
        “srcEntry”: “./ets/entryability/EntryAbility.ts”,
        “description”: “$string:EntryAbility_desc”,
        “icon”: “$media:icon”,
        “label”: “$string:EntryAbility_label”,
        “startWindowIcon”: “$media:icon”,
        “startWindowBackground”: “$color:start_window_background”,
        “exported”: true,
        “launchType”: “singleton”,
        “skills”: [
          {
            “entities”: [
              “entity.system.home”
            ],
            “actions”: [
              “action.system.home”
            ]
          }
        ]
      },
      {
        “name”: “TestAbility”,
        “srcEntry”: “./ets/testability/TestAbility.ts”,
        “description”: “$string:TestAbility_desc”,
        “icon”: “$media:icon”,
        “label”: “$string:TestAbility_label”,
        “startWindowIcon”: “$media:icon”,
        “launchType”: “specified”,
        “startWindowBackground”: “$color:start_window_background”
      }
    ]
  }
}