I have gone through the tutorial 4 times and found 5 different articles, none of which have helped me.
I have recreated my key, added and removed the device registration service, and still no luck.
I have the push set up on my start screen. The init was completed, the success event was called. I uninstalled/reinstalled/added every permission/regenerated google api key/regenerated my android certificate.
When I try the push, it's displaying invalid registration in the push screen. (Although earlier today it was showing successful but I wasn't receiving the messages.)
I notice the token in the database contains undefined.
I had this working previously and for some reason it's magically not working.