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

Starting in AngularFire 5.0 you'll want to use one of snapshotChanges(), valueChanges<T>(), stateChanges(), or auditTrail(). See the 5.0 migration guide.

Get started with the most basic, valueChanges():

export class AppComponent {
  countries: Observable<Country[]>;
  constructor(db: AngularFireDatabase ) {
    this.countries = db.list('/Country/countries').valueChanges();
  }
}

Answer 2

Try the next:

export class AppComponent {
  countries: any[];

  constructor(db: AngularFireDatabase )
  {
      this.countries = db.list('/Country/countries').valuesChanges();
  }
}

And if you have a model then:

export class AppComponent {
  countries: Country[];

  constructor(db: AngularFireDatabase )
  {
     this.countries = db.list<Country>('/Country/countries').valueChanges();
  }
}

Answer 3

A simpler change would to be add valueChanges() before .subscribe()

db.list('/Country/countries').valueChanges().subscribe(countries => {
    this.countries = countries;
    console.log(this.countries);
});

Answer 4

export class AppComponent { constructor(db : AngularFireDatabase) { db.list('/courses').valueChanges().subscribe()

} }

In Angular firebase version 5.0 and above .subscribe is available after .valuechanges()

Answer 5

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

Import code the code,

 countries: Observable<any[]>;
 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)
  }