Ionic 2 push notification can't get DEVICE TOKEN


I’ve tried two different tutorials:

Everything is working properly except after i invoke ionic run android everything is building & running well and in the end i get : No target specified, deploying to device '52xxxxxxxxx'. According to the tutorials , on this place the device token should be printed.

I’ve also tried to run both apps on different devices and i get the same output with different numbers.

Anyone help ?

Thanks in advance.