Injectables in Angular2

Question

I am playing around with Angular2. As a basis, I used the quickstart project from the angular.io page.

Everything seems to work fine, but as soon as I try to inject

Answer 1

I had faced the same problem. Below were the resolution:

1. --emitDecoratorMetadata was missed in tsc
2. If I was injecting service from same file it was failing, but when I put the service is some other file and when imported that, it started working. probably bug in Angular2 version I was using.