HarmonyOS 使用Preferences保存数据，报401错误

setStore(key: string, value: string): void { 
  Logger.debug('StorageBridge => setStore key is : ' + key, 'value is : ' + value) 
  if (!value || '' === value || 'undefined' === value) { 
  Logger.debug('StorageBridge => 移除key：', key) 
} else { 
  Logger.debug('StorageBridge => 保存数据长度：' + value.length) 
  this 
    .preferenceManager 
    .setValue<string>(key, '' + value) 
    .then(() => { 
      Logger.debug('StorageBridge => 保存数据成功') 
    }) 
    .catch((error: BusinessError) => { 
      Logger.error('StorageBridge => 保存数据异常，错误码：' +  error.code + '；内容：' + error.message) 
    }) 
} 
}