'query' does not exist in type 'QueryFn' | angularfire2

Question

Argument of type \'{ query: { limitTolast: number; orderByKey: boolean; }; }\' is not assignable to parameter of type \'QueryFn\'.Object literal may only specify known propertie

Answer 1

due to update on Angular Fire, replace FirebaseListObservable to AngularFireList and make sure you return firebase.database.Query like this

 getMessages(): AngularFireList {
    return this.db.list('messages', ref => {
      return ref.limitToLast(25).orderByKey();
    });
  }