Import and run module

Site and Services
1

Hi,
I am a beginner with webix and am having some difficulties.
I have a small app, based on jet-start, that works correctly and that I compiled as a module to use in another application, but when using it, the browser stops in error. The code is as in the jet-book. Any idea what is wrong.
Thanks in advance.

import {JetView} from "webix-jet";
import MyApp from "./modules/auth/myapp.js";
import "./modules/auth/myapp.css";

export default class AView extends JetView{
	config(){
		const aview = new MyApp();
		return {
			rows:[aview]
		};
	}
}