file attribute undefined

[joonspoon]

Hello!

I need some help getting this working, if you would be so kind...

I'm trying to allow users to upload an image of their insurance card, but as you can see in the model an attribute whose type is 'file' shows up as undefined, and I think it's not finding the Mixin?

I'm using Ember Data 2.14.2.

I'm pretty new to Ember. Any help would be greatly appreciated.