Push, GUIDE: The "Push.appCollection" is empty

I looked at all the relevant issues and it seems all of them don't apply to me.
I know that the certificates are working fine because I am using [NWPusher](https://github.com/noodlewerk/NWPusher) to test, and the push notifications seem to work.
It is just that when I do `Push.send(..)` I get the above error.

I started my server like this:
`meteor run ios-device --mobile-server localhost:3000`

and mobile config is set correctly. Is there anything that I am missing?

I was able to print the token by listening to `token` event, but it seems `reportTokenToServer` is just not called properly or for some other reason the token doesn't get registered.

Also, one weird thing is the app doesn't ask for push permissions when I first open it after a fresh install.

Start at the Push.send(..) entry point and trace the token event through reportTokenToServer and Push.appCollection. Reproduce the issue with the stated meteor run ios-device configuration, checking token registration and the missing permission prompt; done means the collection is populated and push sending works.

Written by the indexing model from the issue text.