HarmonyOS 鸿蒙Next asset 运行add方法时报错

demo：

import { asset } from '@kit.AssetStoreKit';
import { util } from ‘@kit.ArkTS’;
import { BusinessError } from ‘@kit.BasicServicesKit’;
function stringToArray(str: string): Uint8Array {
  let textEncoder = new util.TextEncoder();
  return textEncoder.encodeInto(str);
}
function string2Uint8Array(str: string): Uint8Array {
  if (!str) {
    console.error(‘stringToUint8Array’, ‘params error’);
    throw new Error(‘stringToUint8Array, params error’);
  }
  let arr: number[] = [];
  for (let i = 0; i < str.length; ++i) {
    arr.push(str.charCodeAt(i));
  }
  return new Uint8Array(arr);
}
export function addAsset() {
  let attr: asset.AssetMap = new Map();
  attr.set(asset.Tag.SECRET, string2Uint8Array(‘demo_pwd’));
  attr.set(asset.Tag.ALIAS, stringToArray(‘demo_alias’));
  attr.set(asset.Tag.ACCESSIBILITY, asset.Accessibility.DEVICE_POWERED_ON);
  // attr.set(asset.Tag.IS_PERSISTENT, true);
  attr.set(asset.Tag.DATA_LABEL_NORMAL_1, stringToArray(‘demo_label’));
  try {
    asset.remove(attr)
    asset.add(attr).then(() => {
      console.info(Asset added successfully.);
    }).catch((err: BusinessError) => {
      console.error(Failed to add Asset. Code is ${err.code}, message is ${err.message});
    })
  } catch (error) {
    let err = error as BusinessError;
    console.error(Failed to add Asset. Code is ${err.code}, message is ${err.message});
  }
}
@Entry
@Component
struct Index {
  aboutToAppear(): void {
    addAsset()
  }
  build() {
    Column() {
      Row() {
        Text(‘Hello Huawei’)
      }
    }
  }
}<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>