I'm not able to receive notifications in iOS. I coded my application in ionic framework and apparently Firebase doesn't officially support ionic. Any ideas on how to resolve the issue.
Here what I've done already:
The certificates have been created in apple dev account.
APNS key has been uploaded to the firebase console.
Ive included the
Google-Service-Info.plistto my project folder.
Im asked for permission for notification when the app opens up but my test notification is not getting received by the app.
The error message is :
Failed to subscribe to topic Error Domain=com.google.fcm Code=5 “(null)”
Xcode version: 9.4.1
iOS target development version: 9.0
iOS testing version: 11.4