Emberjs setting a router causing connection issues

I am attempting to start an EmberJS App.

In order of what I have done so far: 1. npm install -g ember-cli 2. ember new ember-quickstart 3. cd ember-quickstart 4. ember serve

Up to this point accessing localhost:4200 takes me to the default application.hbs file and content can be displayed.

Following this: 1. ember generate route scientists

After this change the localhost:4200 cannot be connected to in browser or using the following url: http://localhost:4200/scientists

Unsure of what could cause this and also being inexperienced with Ember, is there something i'm missing?

TIA