问目标入口点"ngx-cookie-service“中的错误缺少依赖项:角10.1.2

EN

import { CookieService } from 'ngx-cookie-service';

@NgModule({
  ...
  providers: [ CookieService ],
  ...
})
export class AppModule { }

import { CookieService } from 'ngx-cookie-service';

@Injectable({
  providedIn: 'root'
})
export class Service {

  private userSubject: BehaviorSubject<User>;
  private user: Observable<User>;
  
  constructor(private cookieService: CookieService) {
    this.userSubject = new BehaviorSubject<User>(JSON.parse(this.cookieService.get('USER')));
    this.user = this.userSubject.asObservable();
  }