iosnotificationsnsmanagedobjectid

Notification error: Adding notification request failed with error

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?

Solution

  • 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))