angular and firebase: Cannot find namespace 'firebase'

Question

I am getting the below error while working with angular and firebase:

Typescript Error

Cannot find namespace 'firebase'.

C:/Users/DELL/Desktop/connect/withfire/node_modules/angularfire2/auth/auth.d.ts

 app: FirebaseApp; 
 readonly auth: firebase.auth.Auth; 
 readonly authState: Observable<firebase.User | null>;

Melchia · Accepted Answer · 2017-12-26 16:37:50Z

4

You need to downgrade firebase version. Try this: $ npm install -s [email protected]

answered Dec 26, 2017 at 16:37

Melchia

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KLTR · Accepted Answer · 2017-12-26 17:53:53Z

4

4.8.1 was a refactor of the typings and you now pull your imports from @firebase:

import { FirebaseApp } from '@firebase/app-types';
import { FirebaseAuth } from '@firebase/auth-types';
import { FirebaseDatabase } from '@firebase/database-types';
import { FirebaseMessaging } from '@firebase/messaging-types';
import { FirebaseStorage } from '@firebase/storage-types';
import { FirebaseFirestore } from '@firebase/firestore-types';

import what ever module you need

answered Dec 26, 2017 at 17:53

KLTR

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Mohamed Hmini · Accepted Answer · 2018-01-04 19:30:49Z

2

npm install [email protected] --save-dev

edited Jan 4, 2018 at 19:30

answered Dec 28, 2017 at 16:37

Mohamed Hmini

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Sampath · Accepted Answer · 2018-01-29 09:23:53Z

1

Update: 29-01-2018

This worked for me 👍

  "angularfire2": "5.0.0-rc.6",
  "firebase": "4.8.2",

Note: Don't forget to delete node_modules folder and npm i.

answered Jan 29, 2018 at 9:23

Sampath

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1 Comment

Sampath Over a year ago

Glad to hear that it helped :) @Jared

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