Error TS2 339: Property 'timeout' does not exist on type 'Observable<Response>'

Ionic Framework ionic-v3
2

I don’t think it’s related to the upgrade to Ionic but rather to a not correct use of rxjs timeout as of rxjs 6

Here an example of timeout pipe:

import {timeout} from 'rxjs/operators';

this.anObservable()
   .pipe(
      timeout(4000)
   ).subscribe((result: any) => {
      console.log('Cool');
   }, (err: any) => {
      console.log('Not cool');
  });