This.user.get Ionic Auth problem - "Supplied parameters do not match any signature of call target"

Ionic Framework ionic-v3
1

With Ionic Auth, I’ve set some user data using this.user.set.
The problem I’m having is retrieving this data. I’m getting a TS error: "Supplied parameters do not match any signature of call target"
Any clues?
Following the Ionic Cloud docs, retrieving is simply:
this.user.get('birthdate'); // get value of 'birthdate' or null

Thanks.

2

I have the very same problem, did you find a solution to this?
Or could anyone guide us please?

The weirdest part is that when I write :

this.user.set('birthdate', '5/17/1985');
var test = this.user.get('birthdate');
console.log(test);

The console.log does show “5/17/1985”