HarmonyOS 鸿蒙Next Cannot read property SharedData of undefined

import { common } from ‘@kit.AbilityKit’;
import { systemShare } from ‘@kit.ShareKit’;
import { uniformTypeDescriptor as utd } from ‘@kit.ArkData’;

@Entry
@Component
struct ShareStr {

  build() {
    Column() {
      Button(“分享”)
        .onClick(() => {
          // 构造ShareData，需配置一条有效数据信息
          let data: systemShare.SharedData = new systemShare.SharedData({
            //设置传输文件的类型(更多类型查看上方表格)
            utd: utd.UniformDataType.PLAIN_TEXT,
            //设置自定义传输文本
            content: ‘Hello HarmonyOS’
          });
          // 额外再添加一条记录
          data.addRecord({
            utd: utd.UniformDataType.PNG,
            // 通过文件所在目录进行传输
            uri: ‘file://…/test.png’
          });
          // 构建ShareController
          let controller: systemShare.ShareController = new systemShare.ShareController(data);
          // 获取UIAbility上下文对象
          let context: common.UIAbilityContext = getContext(this) as common.UIAbilityContext;
          // 注册分享面板关闭监听
          controller.on(‘dismiss’, () => {
            console.info(‘Share panel closed’);
            // 分享结束，可处理其他业务。
          });
          // 进行分享面板显示
          controller.show(context, {
            // DETAIL为详细预览图模式
            previewMode: systemShare.SharePreviewMode.DETAIL,
            // SINGLE为单选模式，传入一个记录则单传，多个则n选1；BATCH为批量模式
            selectionMode: systemShare.SelectionMode.SINGLE
          });
        })
    }
    .height(‘100%’)
    .width(‘100%’)
  }
}

Error message:Cannot read property SharedData of undefined

SourceCode:

                let data: systemShare.SharedData = new systemShare.SharedData({

                                                       ^

Stacktrace:

    at anonymous (entry/src/main/ets/pages/api/ShareStr.ets:14:50)