Angular cli after update npm start give error

Question

I create application using angular cli and use backend proxy to handle backend and using polymer(vaadin) it work correctly until I update to angular cli 1.0.0-beta.22 it give Er

Answer 1

This is caused by Angular CLI latest update. In the latest update, webpack searches for boostrap Module in main.ts top level. In main-polymer.ts, main.ts is wrapped by addEventListener so webpack can't find the bootstrap module that's why it reports an error.

Further reference github.com/angular/angular-cli/issues/2887