typescript - Angular 2 beta.17 : Property 'map' does not exist on type 'Observable'

Question

我刚刚从 Angular 2 beta16 升级到 beta17，这又需要 rxjs 5.0.0-beta.6。 (这里的变更日志:https://github.com/angular/angular/blob/master/CHANGELOG.md#200-beta17-2016-04-28)在 beta16 中，所有关于 Observable/map 功能的工作都很好。我升级后出现以下错误，并在 typescript 尝试转译时发生:

1. Property 'map' does not exist on type 'Observable' (anywhere where I've used map with an observable)
2. c:/path/node_modules/rxjs/add/operator/map.d.ts(2,16): error TS2435: Ambient modules cannot be nested in other modules or namespaces.
3. c:/path/node_modules/rxjs/add/operator/map.d.ts(2,16): error TS2436: Ambient module declaration cannot specify a relative module name.

我看过这个问题/答案，但它没有解决问题:Observable errors with Angular2 beta.12 and RxJs 5 beta.3

我的 appBoot.ts 看起来像这样(我已经在引用 rxjs/map):

///<reference path="./../node_modules/angular2/typings/browser.d.ts"/>
import {bootstrap} from "angular2/platform/browser";
import {ROUTER_PROVIDERS} from 'angular2/router';
import {HTTP_PROVIDERS} from 'angular2/http';
[stuff]
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/toPromise';
import {enableProdMode} from 'angular2/core';
import { Title } from 'angular2/platform/browser';


//enableProdMode();
bootstrap(AppDesktopComponent, [
    ROUTER_PROVIDERS,
    HTTP_PROVIDERS,
    Title
]);

有人知道发生了什么事吗？

Answer 1

你需要导入map操作符:

import 'rxjs/add/operator/map'