Flutter FCM for iOS - Reports Issue

[karthikeyanp307]

Hi,

I am using firebase_messaging v9.0.1 in my Flutter application. On configuring this library based on the https://pub.dev/packages/firebase_messaging/example, I am able to receive the notification for android in both foreground and background states. But the same for iOS is not working. I am getting the below error,

APNS device token not set before retrieving FCM Token for Sender ID ''. Notifications to this FCM Token will not be delivered over APNS.Be sure to re-retrieve the FCM token once the APNS device token is set.

Do I want to call any other function apart from FirebaseMessaging.instance.getToken() for iOS? Please help.

[darshankawar]

@karthikeyanp307
Can you check and confirm if your iOS device is connected properly to the internet ?
If so, does it return token from FirebaseMessaging.instance.getToken() ?

Also, provide your flutter doctor -v to properly address this issue.
Check if any of these helps.

https://stackoverflow.com/a/66123064

[georgehoss]

Hi,

I am using firebase_messaging v9.0.1 in my Flutter application. On configuring this library based on the https://pub.dev/packages/firebase_messaging/example, I am able to receive the notification for android in both foreground and background states. But the same for iOS is not working. I am getting the below error,

APNS device token not set before retrieving FCM Token for Sender ID ''. Notifications to this FCM Token will not be delivered over APNS.Be sure to re-retrieve the FCM token once the APNS device token is set.

Do I want to call any other function apart from FirebaseMessaging.instance.getToken() for iOS? Please help.

I had the same problem, I went step by step again with firebase documentation and realize that the push notification capability was missing on debug and release modes.

Steps to solve the issue:

1. Go to xcode
2. Select runner
3. Signing & Capabilities
4. Check debug and release capabilities you need to have background modes and push notification

https://firebase.flutter.dev/docs/messaging/apple-integration

[rak54]

@karthikeyanp307 Can you check and confirm if your iOS device is connected properly to the internet ? If so, does it return token from FirebaseMessaging.instance.getToken() ?

Also, provide your flutter doctor -v to properly address this issue. Check if any of these helps.

https://stackoverflow.com/a/66123064

EveryThing is fine by side . Though I have deleted APNS (.p8) key that i am using and created new one . Could that be the problem ?

[sguru049]

@darshankawar I'm also facing the same issue for my web-app, with firebase_messaging v9.0.1. The notifications doesn't work in iOS devices, for any browsers. For Android, It works good for Chrome but fails for Firefox and Opera.

FirebaseMessaging.instance.getToken() returns null for all browsers on iOS. Same for Firefox and Opera on Android. The issue is, the notification asking for permission to send notifications doesn't pop-up on these devices.

flutter doctor -v also shows "No issues Found!"

Can you please suggest a solution ?

[peteroleeman]

having same issue as well

[karthikeyanp307]

@darshankawar - I tried with the https://github.com/FirebaseExtended/flutterfire/tree/master/packages/firebase_messaging/firebase_messaging/example. When configured with FCM - google-services it works fine for android and getting the same error as above for iOS.

"APNS device token not set before retrieving FCM Token for Sender ID ''. Notifications to this FCM Token will not be delivered over APNS.Be sure to re-retrieve the FCM token once the APNS device token is set." My iOS device is connected to internet and there were no network related issues while running this.

Also getAPNSToken() always returns null. Please help me on this.

Thanks.

[darshankawar]

@karthikeyanp307
It seems you haven't setup your iOS part properly. See this document and follow the steps as directed, https://firebase.flutter.dev/docs/messaging/apple-integration.

Also, the document states that, On iOS & macOS, you must have correctly setup your project to integrate with FCM and APNs.

[lulamprea]

Any update on the fixing of this bug?

[karthikeyanp307]

@darshankawar - Thanks for your reply. I have followed the steps provided in the reference link.

I used firebase_messaging: ^7.0.3 earlier with the same application and both android & iOS were working fine. When upgraded the same application to the latest firebase messaging v9.0.1 I started getting this error for iOS.But the same works fine for android. Is there anything specific that we need to do, while upgrading to the latest firebase messaging library.

Thanks.

[georgehoss]

I had the same problem, I went step by step again with firebase documentation and realize that the push notification capability was missing on debug and release modes.

Steps to solve the issue:

1. Go to xcode
2. Select runner
3. Signing & Capabilities
4. Check debug and release capabilities you need to have background modes and push notification

https://firebase.flutter.dev/docs/messaging/apple-integration

[rak54]

I had the same problem, I went step by step again with firebase documentation and realize that the push notification capability was missing on debug and release modes.

Steps to solve the issue:

1. Go to xcode
2. Select runner
3. Signing & Capabilities
4. Check debug and release capabilities you need to have background modes and push notification

https://firebase.flutter.dev/docs/messaging/apple-integration

I have done all that , still not working . Anything else ?

[karthikeyanp307]

@darshankawar - I have re-verified the steps in the reference link, but facing the same issue still now.
Please let me know if you need any more details to help me on this.

Thanks.

[lulamprea]

@darshankawar, I have been following this thread for a while due to I'm facing the same issue, is this something that google is interested to fix?

Is there any information that you require so we can help to make progress in this bug? . Perhaps if you can point us in to the firebase module source code we could try to contribute fixing the code?

Thank you very much for your help

[darshankawar]

Cc: @Salakar for further insights.

[lulamprea]

Thank you

[lulamprea]

@Salakar is there anything that we can do to help here?

[sudhanshug16]

Facing the same issue with v9.1.2. Trying to make it work with a new app and getting the following error:

APNS device token not set before retrieving FCM Token for Sender ID '<>'. Notifications to this FCM Token will not be delivered over APNS.Be sure to re-retrieve the FCM token once the APNS device token is set.

.getAPNSToken() returns null

I have followed all the steps mentioned in documentation, checked it twice but still doesn't work. Android works fine.

[karthikeyanp307]

@Salakar - Could you please help me on resolving this. Is there anything missing in the documentation that I am supposed to do to make this work?

Let me know for any clarification or inputs to help us on this.

[themaaz32]

I am also getting the same error with null APNs Token

[Salakar]

For messaging related issues it's helpful to provide a lot more detail on your problem to allow maintainers such as myself to help on these issues, e.g.;

• How are you sending the notification? (if relevant)
• What's your full notification payload including FCM options? (if relevant)
• Full code showing how you've registered your background handler, not just copy paste the functions, we need to see explicitly where you've called it and where your handler is located, e.g. it should be a top level function. (if relevant)
• What device are you testing on, os version, make, model.
• What specifically isn't working, background, foreground, seeing logs but not seeing notifications, etc, details here help. (if relevant)
• Versions, Flutter, FlutterFire messaging, etc.
• Related screenshots & log outputs.

[karthikeyanp307]

Hi @Salakar ,

Thanks for your reply. We are trying to assign custom notification sound while sending notification to iOS device. But we are not even receiving the notification when tried with the latest firebase_messaging library.

Below are the required details.

• We are sending the notification via Postman for testing and in production via Spring boot application.

o URL - https://fcm.googleapis.com/fcm/send

o Body

{
"to": "token",
"notification": {
"sound": "alert.caf",
"title": "message_title",
"body": "message_body",
"id": "message_id"
},
"data": {
"body": "message_body",
"category": "category",
"title": "message_title",
"click_action": "FLUTTER_NOTIFICATION_CLICK",
"id": "message_id"
},
"apns": {
"headers": {
"apns-priority": "10"
},
"payload": {
"aps": {
"sound": "alert.caf"
}
}
}
}

• Source Code - https://github.com/karthikeyanp307/my_flutter_fcm_app/tree/master/my_app (We are using your example project and have setup the fcm google service info into it). I have removed the google services file for android and iOS app.

• Device Info - iPhone 8; OS v13.5.1; Apple

• Notification are being sent but not received in device in all the app states i.e., foreground, background and when app is killed

• Version Info
o Flutter 2.0.1 • channel stable • https://github.com/flutter/flutter.git
o Framework • revision c5a4b4029c (8 weeks ago) • 2021-03-04 09:47:48 -0800
o Engine • revision 40441def69
o Tools • Dart 2.12.0

o	firebase_core: "1.0.2"
o	firebase_messaging: "9.1.0"

• Logs

Launching lib/main.dart on iPhone in debug mode...
Automatically signing iOS for device deployment using specified development team in Xcode project: XXXXXX
Running Xcode build...
Xcode build done.                                           56.0s
Installing and launching...
Debug service listening on ws://127.0.0.1:56262/94AfOt510kA=/ws
Syncing files to device iPhone...
7.3.0 - [Firebase/Messaging][I-FCM002022] APNS device token not set before retrieving FCM Token for Sender ID '934113297926'. Notifications to this FCM Token will not be delivered over APNS.Be sure to re-retrieve the FCM token once the APNS device token is set.
flutter: FCM Token: dBNhstxWtE3somntJQ92R8:APA91bHGbOvsnSN54PqN9oV3RTmB3fd8cCpwtkjuOphudD2Q7P_mzj57yF_P_seH5raSKD0iATIUMxMq6y8QY9jB_HrV7gzHwYd7QLWLR9y-RkZIMACK_Kfu_rF_VPjPS_JcVeX9UHpH

Kindly help us in resolving this. Thanks in advance. Let us know if you need any more details regarding.

[karthikeyanp307]

Hi @Salakar ,

Adding to the above post.

I have used the FCM Sample application downloaded from https://github.com/FirebaseExtended/flutterfire/tree/master/packages/firebase_messaging/firebase_messaging/example and just added the google services json for iOS.

Let us know if you need any more details.

[dizdaroglu]

hi, it didn't work although i tested it on real device. I have followed all the steps mentioned in documentation, but doesn't work.

[lulamprea]

Is there any progress in this matter? I have not been able to resolve this case, so I'm developing a native IOS plugin. It seems that is the solution while the Flutter team fix the issue.

[dizdaroglu]

I couldn't figure it out, I'm still trying

[sudhanshug16]

For me the fix was to add push notifications as a capability. I mean I added it already but under the wrong subtab. This is how I added the capability

I thought "All", "Debug", etc are mere filters 🤦🏼 but turns out that I had to select "All" and then add the capability. This is more of a UX bug than anything.

[shinewanna]

Facing same issue, it work well before update, after update iOS firebase_messaging is showing this warning and not receiving notifications any more.

APNS device token not set before retrieving FCM Token for Sender ID ''. Notifications to this FCM Token will not be delivered over APNS.Be sure to re-retrieve the FCM token once the APNS device token is set.

[hosein-nadali]

Same issue

[luvishq]

Anyone able to resolve this issue ? @Salakar @karthikeyanp307 ?

[pkgit-tech]

same issue any update

[icodeyou]

flutter clean solved this issue for me

[dhruv048]

Hey, even i am getting same issue
Works like a charm in android, but i am getting this issue on IOS.

APNS device token not set before retrieving FCM Token for Sender ID '458258671137'. Notifications to this FCM Token will not be delivered over APNS.Be sure to re-retrieve the FCM token once the APNS device token is set.

when trying to retrieve APNS token through
FirebaseMessaging.instance.getAPNSToken().then((String token) { print(token); });
it returns null.
i have followed all steps shown in https://firebase.flutter.dev/docs/messaging/apple-integration.
Tried everything suggested in this discussion but still the issue presist.
Thanks,

[himsa]

same issue, any update ?

[irufano]

same isssue here any update ??

[RawahaOsi]

The audacity to close, lock and move such a thread from issues to discussion is out of this world. FlutterFire dudes should be paying more attention to such blocker issues that are breaking thousands of apps worldwide.

[papirovdavid]

Same issue for me: on Real IOS device, ver 7.x notifications worked, but in 9.x - NOT.
Need your urgently help!

[hdn-luan]

Same problem herer :/

[Nitingadhiya]

@papirovdavid please upgrade with latest version, issue resolved.

[hdn-luan]

Still with the same problem :/

[danderer]

Same issue. Preceded by "The default Firebase app has not yet been configured." The doc for doing a CLI initialization makes no mention of the GoogleServices-Info.plist file for iOS, and so I didn't install it.

Installing GoogleServices-Info.plist allowed FlutterFire to successfully initialize, and for messaging via APNS to work for me.

[c0c4i]

Wow! I did the same thing, dropping GoogleServices-Info.plist inside project folder from Xcode and work.

Can someone explain why this things it's not mentioned on FlutterFire Documentation?

[t-hubb]

Solved the issue for me as well, thanks!

[wepashka]

Same issue any update?

[wepashka]

It didn't help at all, any other solution please?

[wepashka]

It was a low internet connection on my phone internet

[Riya-Singhal15]

I've tried all the solutions, but on some devices, it's giving this error. Please provide a solution if anyone has resolved it. Thanks.