Angular 6: Property 'catch' does not exist on type 'Observable'?

Question

I am upgrading my app to Angular 6. I am upgrading from Angular 4, but the code below is causing errors in Angular 6, where it worked fine

Answer 1

you will need to import all operators you are using.

import 'rxjs/add/observable/of';
import 'rxjs/add/observable/throw';
import 'rxjs/add/operator/catch';