1. run npm install
2. run npm start
3. make sure app runs correctly on localhost:9000, should display two messages
4. run npm t and you'll see the $injector error

The one difference between this project and Spinnaker is that in this project, we had to add the NG2_module as a module dependency to the main module in app.ts:

angular.module('hello.world', [MAIN_APP, NG2_MODULE]);