Javascript 更新到Angular 4后无法导入模块

我在将用Angular编写的共享模块导入另一个Angular应用程序时遇到问题。在v2.4.9中，一切正常，但在更新到v4.0.x之后，我发现RxJS出现了一个错误

ERROR in ...../app/node_modules/app-common/src/app/shared/services/api.service.ts (30,14): Property 'catch' does not exist on type 'Observable<any>'.
...../app/node_modules/app-common/src/app/shared/services/api.service.ts (39,14): Property 'catch' does not exist on type 'Observable<Response>'.
...../app/node_modules/app-common/src/app/shared/services/api.service.ts (49,14): Property 'catch' does not exist on type 'Observable<Response>'.
...../app/node_modules/app-common/src/app/shared/services/api.service.ts (58,14): Property 'catch' does not exist on type 'Observable<Response>'.

没有任何变化-仍然是错误

有什么想法吗

import { Observable } from 'rxjs/Rx';