Error while building "Cannot find namespace 'firebase'"

[kanishkatn]

Hi,

I am getting the following error while building the project. Please help

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/database/database.d.ts:9:28
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/database/database.d.ts:10:30
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/providers/auth.d.ts:15:39
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/providers/auth.d.ts:16:51
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/providers/auth.d.ts:16:91
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/providers/auth.d.ts:17:50
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/providers/auth.d.ts:17:118
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/providers/auth.d.ts:20:55
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/providers/auth_backend.d.ts:6:81
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/providers/auth_backend.d.ts:8:48
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/providers/auth_backend.d.ts:13:45
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/providers/auth_backend.d.ts:41:10
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/providers/auth_backend.d.ts:61:54
Cannot find namespace 'firebase'.

ERROR in [default] /Users/kanishkanagaraj/JeetLab/BetMe/web/node_modules/angularfire2/utils/firebase_list_factory.d.ts:5:73
Cannot find namespace 'firebase'.

I am using the following
angular-cli: 1.0.0-beta.15
node: 6.6.0
os: darwin x64
npm: 3.10.7

[davideast]

Duplicate of #525. See the work around in the thread. We're working on a real solution.

[hiepxanh]

import * as firebase from 'firebase';
on top of node_modules\angularfire2\angularfire2.d.ts
worked!

[mpeguero]

import * as firebase from 'firebase';
on top of node_modules\angularfire2\angularfire2.d.ts

This does not work.. same error

[reevr]

I too had this problem and I tried adding " import * as firebase from 'firebase' " . This helped me to get the app compiled, but was throwing error while geting data from firebase.So removed that again.
And I just changed one line in app.module.ts as follows:
to import AngularFireDatabase I used import { AngularFireDatabase } from 'angularfire2/database-deprecated'; instead of import { AngularFireDatabase } from 'angularfire2/database';

This works fine and doesn't throw any error as of now.
Update : Need to downgrade firebase to 4.8.0
Set "firebase": "4.8.0" in package.json file