RxJs and Typescript. TS2307: Cannot find module '@reactivex/rxjs'

typescript rxjs rxjs5
Alejandro Nanez picture Alejandro Nanez · Mar 12, 2017 · Viewed 21.4k times · Source

I got a problem with typescript and RxJs v5.

Please Look the UPDATE sections.

I did yarn add @reactivex/rxjs (also yarn add rxjs) and on my index.ts did import Rx from '@reactivex/rxjs'; and got this error: VSCode Error

Also, if I run node ./node_modules/.bin/tsc I got this error back too error TS2307: Cannot find module '@reactivex/rxjs'.

UPDATE

Also doing

import { Observable } from 'rxjs/Observable'

throws the same error enter image description here.

UPDATE 2

Well this seems to be more related to TS itself than to RxJS.

"compilerOptions": {
    "module": "commonjs",
    "allowJs": true,
    "outDir": "dist",
    "target": "es2015",
    "noImplicitAny": true,
    "noEmit": true,
    "strictNullChecks": true,
    "suppressExcessPropertyErrors": false,
    "suppressImplicitAnyIndexErrors": false,
    "allowUnreachableCode": false,
    "allowUnusedLabels": false,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,
    "lib": [
        "es2015",
        "dom"
    ]
}

Having this ^ configuration seems to fix the VSCode issues, but running tsc against src/index.ts doesn't work

node_modules/rxjs/Observable.d.ts(69,60): error TS2693: 'Promise' only refers to a type, but is being used as a value here.

Answer

Abhishek Chadha picture Abhishek Chadha · Jul 17, 2017

Try setting the "moduleResolution": "node" inside your compileOptions to specify module resolution strategy for TS.

npm install rxjs --save

and in your Typescript

import { Observable } from 'rxjs/Rx';

That fixed it for me.

Related questions

How to return value from function which has Observable subscription inside?

I dont know how to extract value from Observable to be returned by function in which Observable is present. I need just a value from it to be returned, nothing else. Current version which works function getValueFromObservable() { this.store.subscribe( (…

Read More
Typescript Select Ids from object

I am new to Typescript. I want to select ids from observable This is my observable let myObj = [{ "id": 1, "text": "Mary" }, { "id": 2, "text": "Nancy" }, { "id": 3, "text": "Paul" }, { "id": 4, "text": "Cheryl" }, { "id": 5, "text": "Frances" }] Expected Result : let selectedIds = [1,2,3,4,5]; Can I do …

Read More
How do I get around this "Subject incorrectly extends Observable" error in TypeScript 2.4 and RxJS 5.x?

When I compile, I get the following compiler error in the RxJS declaration files: node_modules/rxjs/Subject.d.ts(16,22): error TS2415: Class 'Subject<T>' incorrectly extends base class 'Observable<T>'. Types of property …

Read More