ember.js simple-auth with django rest: No authenticator for factory "simple-auth-authenticator:django-rest-auth" could be found

I'm trying to get ember to work with ember-simple-auth (http://ift.tt/17HJBBx) and django-rest-auth (http://ift.tt/1Gt4QbJ) but looks like I'm missing something..

I keep getting

"Uncaught Error: Assertion Failed: No authenticator for factory "simple-auth-authenticator:django-rest-auth" could be found!" and I'm not sure what I'm missing.

Basically I followed this example http://ift.tt/XlmdLZ and replaced the authenticator with the django-rest-auth and added the initializer from the ember-cli-django-rest-auth docs.

Any ideas what I'm missing? also if there's any working example of ember-cli-django-rest-auth that would be great.

thanks!