Q:

yeoman angular2 webapp generator throws an error on running default serve

Using yeoman's fountain-webapp generator for an angular2 project.
Ran the generator and on running npm run serve, I get the following error,

A:

This is because of TypeScript of version 2.4+. Downgrade it to 2.3+. Or, upgrade the rxjs package to 5.4.2. See Subject::lift has incorrect type signature.

