AngularFIRE Property 'subscribe' does not exist on type 'AngularFireList<{}>'

Question

I\'m following this tutorial about how to connect angular with firebase database. But in minute 17:30 I\'m getting this error:

Property \'subscribe\' does not ex

Answer 1

import { AngularFireDatabase, AngularFireList } from 'angularfire2/database';
import { Observable } from 'rxjs';

Import code the code,

 countries: Observable;
 allCountries: any;

  constructor(db: AngularFireDatabase ) {
    this.countries = db.list('/yourpath').valueChanges();  
    this.countries.subscribe(countries => {
      this.allCountries = countries;
      console.log(this.allCountries);
    })
    console.log(this.countries)
  }