I built ionic3 app and using FCM to send push notification , I try to get the token when app opened , I have two android emulators one of them return the token and the other return null !!!
how can I fix this ?
I built ionic3 app and using FCM to send push notification , I try to get the token when app opened , I have two android emulators one of them return the token and the other return null !!!
how can I fix this ?