Notification error: Adding notification request failed with error

Question

Attempting to create a local notification fails with the following error:

Adding notification request failed with error: Error
Domain=NSCocoaErrorDomain Code=4097 "connection to service named
com.apple.usernotifications.usernotificationservice" UserInfo=
{NSDebugDescription=connection to service named 
com.apple.usernotifications.usernotificationservice}

What does that mean?

score 9 · Accepted Answer · answered Aug 25 '19 at 21:40

9

This is caused by attempting to pass a URL from objectID.uriRepresentation() in userInfo of the notification.

It is necessary to store objectID.uriRepresentation().absoluteString instead.

When the notification is handled, the objectID can be recovered by:

persistentStoreCoordinator
    .managedObjectID(forURIRepresentation: URL(string: uri))

answered Aug 25 '19 at 21:40

Matt

4,261
4
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Thanks. Got the same error message, and following your answer, I found out that I was setting a non-property list type in the notification's `UserInfo`. I have removed it and it started to work :) – shbedev Jan 02 '20 at 13:18

score 1 · Answer 2 · answered Mar 30 '20 at 10:05

1

I faced the issue by trying to add userInfo with a URL type value. Fixed by changed the URL to String.

You may check whether your input value is String Value. If not, make it as a string could fix this issue.

answered Mar 30 '20 at 10:05

Jerome Li

1,492
14
20

score 1 · Answer 3 · answered Dec 27 '22 at 15:59

1

I got this by including a NSUUID/UUID in a dictionary, switching to the string representation has stopped the error being reported!

answered Dec 27 '22 at 15:59

CMash

1,987
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35

Notification error: Adding notification request failed with error

3 Answers3