ionic firebase - TypeError: Object(…) is not a function at Firebase.getToken

Question

I am following a little tutorial to install and use firebase,

But I can\'t even pass the part where I have to do

this.firebase.getToken().then(token

Answer 1

I have answered a similar question here https://stackoverflow.com/a/54398403/6617276

Check your project type in ionic.config.json file.

If the type is "ionic-angular", then install 4.x.x version.

npm i -s @ionic-native/firebase@4.20.0

If the type is "angular", then install 5.x.x-beta version

npm i -s @ionic-native/firebase@5.0.0-beta.24

Note:

Add ngx at the end of import only if you are using Angular 6

import { Firebase } from '@ionic-native/firebase/ngx';

if not remove ngx from the import both in app.module.ts and app.component.ts

import { Firebase } from '@ionic-native/firebase';

Refencence:https://github.com/ionic-team/ionic/issues/15225#issuecomment-414074074