Angular 6找不到模块“ @ angular / common / locales”

Question

我正在尝试在运行时在管道中导入语言环境。在启动时，我收到此消息

  

错误：在webpackMissingModule（currency.pipe.ts：41）上找不到模块“ @ angular / common / locales”

我想做的是：

constructor(private translateService: TranslateService,
              private basicsStore: BasicsStore) {
    this.basicsStore.user$().subscribe(user => {
      if (!user) return;
      this.language = user.language;
      this.country = user.country;
      this.localeInitializer(this.language);
    });
  }

 localeInitializer(localeId: string): Promise<any> {
    return import(`@angular/common/locales/${localeId}.js`).then(locale => {
      registerLocaleData(locale.default);
    });
  }

知道我在做什么错吗？谢谢。