anglar cli的 rxjs_1.of is not a function

按照官网敲例子遇到 rxjs_1.of is not a function

import { Observable,of } from \'rxjs\';

　　

改为

import { Observable} from \'rxjs/Observable\';
import { of } from \'rxjs/observable/of\';
getHeroes(): Observable<Hero[]> {
return of(HEROES);
}

解决不在报错