ionic3 - ERROR Error: Uncaught (in promise): Error: InvalidPipeArgument: '[object Object]' for pipe 'AsyncPipe'

Question

I did a news comment function by ionic3 with firebase, after testing comment function working already, but when I want the comment showing in my project error coming out.

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Answer 1

Try changing your contactsList declaration from

contactsList:AngularFireList;

to

contactsList: Observable;

Ensure that you're importing your Observable module as,

import { Observable } from 'rxjs/Observable'

Also your contactList variable assignment should be changed as,

this.contactsList = this.firebaseService.getContactsList().valueChanges(); 

Hope this helps!