401错误表示提供的上下文类型不正确，需要使用UIAbility的上下文。获取UIAbilityContext的方式如下：
import { AbilityConstant, UIAbility, Want } from '@kit.AbilityKit';
export default class EntryAbility extends UIAbility {
onCreate(want: Want, launchParam: AbilityConstant.LaunchParam) {
let uiAbilityContext = this.context;
// ...
}
} 参考链接