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

Question

I just upgraded from Angular 2 beta16 to beta17, which in turn requires rxjs 5.0.0-beta.6. (Changelog here: https://github.com/angular/angular/blob/master/CHANGELOG.md#200-beta17-2016-04-28) In beta16 all was working well regarding Observable/map functionality. The following errors appeared after I upgraded and occur when typescript attempts to transpile:

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.

I have seen this question/answer but it does not solve the problem: Observable errors with Angular2 beta.12 and RxJs 5 beta.3

My appBoot.ts looks like this (am already referencing 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
]);

Does anybody have any idea what is going haywire?

Answer 1

You need to import the map operator:

import 'rxjs/add/operator/map'