Since iOS 16.4.1 (potentially also 16.4, the last known working version was 16.3.1) some of our apps are unable to add notifications to UNUserNotificationCenter using add(_:withCompletionHandler:) iff these notifications have an attachment.
The internal testing flavour of the same app, exactly the same code just with a different app icon, continues to work without any issues.
The error message we receive in the completionHandler of add(_:withCompletionHandler:) is Error Domain=UNErrorDomain Code=100 "Invalid attachment file URL" UserInfo={NSLocalizedDescription=Invalid attachment file URL}. StackOverflow didn't yield any useful results.
Digging deeper we looked at the console output of one of our test devices and noticed that SpringBoard logs Cannot stage attachment. Must provide either a connection or proxy, and not both immediately before the error is returned in our app.
Is this actually an issue outside of our app?
Is there something we can do to resolve this issue?
Log from an iPhone 14 using iOS 16.5 Developer Beta 2 after receiving a push notification in our application.
error 14:14:13.211481+0200 SpringBoard XPC current connection is unexpectedly nil
fault 14:14:13.211920+0200 SpringBoard Cannot stage attachment. Must provide either a connection or proxy, and not both. Attachment: 'file:///private/var/mobile/Containers/Data/PluginKitPlugin/********-****-****-****-************/Library/Caches/Images/Image.jpg'
fault 14:14:13.211970+0200 SpringBoard Cannot stage attachment. Must provide either a connection or proxy, and not both. Attachment: 'file:///private/var/mobile/Containers/Data/PluginKitPlugin/********-****-****-****-************/Library/Caches/Images/Image.jpg'
error 14:14:13.212024+0200 SpringBoard Attachment file is not related to bundle: fileURL=file:///var/mobile/Containers/Data/PluginKitPlugin/********-****-****-****-************/Library/Caches/Images/Image.jpg, bundleIdentifier=<private>, stagingError=(null)
error 14:14:13.212076+0200 SpringBoard Attachment file is not related to bundle: fileURL=file:///var/mobile/Containers/Data/PluginKitPlugin/********-****-****-****-************/Library/Caches/Images/Image.jpg, bundleIdentifier=<private>, stagingError=(null)
error 14:14:13.212131+0200 SpringBoard Unable to resolve URL: attachment=<UNNotificationAttachment: 0x281546980; identifier: Image, URL: file:///var/mobile/Containers/Data/PluginKitPlugin/********-****-****-****-************/Library/Caches/Images/Image.jpg, type: public.jpeg, options: <UNNotificationAttachmentOptions: 0x280647200; displayLocation: default; thumbnailGeneratorUserInfo: {
}>>, error=Error Domain=UNErrorDomain Code=100 "Invalid attachment file URL" UserInfo={NSLocalizedDescription=Invalid attachment file URL}
error 14:14:13.212182+0200 SpringBoard Unable to resolve URL: attachment=<UNNotificationAttachment: 0x281546980; identifier: Image, URL: file:///var/mobile/Containers/Data/PluginKitPlugin/********-****-****-****-************/Library/Caches/Images/Image.jpg, type: public.jpeg, options: <UNNotificationAttachmentOptions: 0x280647200; displayLocation: default; thumbnailGeneratorUserInfo: {
}>>, error=Error Domain=UNErrorDomain Code=100 "Invalid attachment file URL" UserInfo={NSLocalizedDescription=Invalid attachment file URL}
error 14:14:13.212234+0200 SpringBoard Unable to stage attachment: attachment=<UNNotificationAttachment: 0x281546980; identifier: Image, URL: file:///var/mobile/Containers/Data/PluginKitPlugin/********-****-****-****-************/Library/Caches/Images/Image.jpg, type: public.jpeg, options: <UNNotificationAttachmentOptions: 0x280647200; displayLocation: default; thumbnailGeneratorUserInfo: {
}>>, error=Error Domain=UNErrorDomain Code=100 "Invalid attachment file URL" UserInfo={NSLocalizedDescription=Invalid attachment file URL}
error 14:14:13.212286+0200 SpringBoard Unable to stage attachment: attachment=<UNNotificationAttachment: 0x281546980; identifier: Image, URL: file:///var/mobile/Containers/Data/PluginKitPlugin/********-****-****-****-************/Library/Caches/Images/Image.jpg, type: public.jpeg, options: <UNNotificationAttachmentOptions: 0x280647200; displayLocation: default; thumbnailGeneratorUserInfo: {
}>>, error=Error Domain=UNErrorDomain Code=100 "Invalid attachment file URL" UserInfo={NSLocalizedDescription=Invalid attachment file URL}
error 14:14:13.212444+0200 SpringBoard Hit error staging attachment, will roll back: error=Error Domain=UNErrorDomain Code=100 "Invalid attachment file URL" UserInfo={NSLocalizedDescription=Invalid attachment file URL}
default 14:14:13.212548+0200 SpringBoard [com.*ourAPP*] Notification serviced by the communication context service: 0. Has context: 0. Type: (null)
Log from an iPhone 14 using iOS 16.5 Developer Beta 2 after receiving a push notification in our internal test application.
error 14:24:13.307140+0200 SpringBoard File at '<private>' already exists in the repository
default 14:24:13.307198+0200 SpringBoard Moved attachment file into repository: attachment=<UNNotificationAttachment: 0x28053b940; identifier: Image, URL: file:///var/mobile/Containers/Data/PluginKitPlugin/D12633C1-E060-4CCC-95FD-16C5AC9E3005/Library/Caches/Images/Image.jpg, type: public.jpeg, options: <UNNotificationAttachmentOptions: 0x28105a220; displayLocation: default; thumbnailGeneratorUserInfo: {
}>>, repositoryURL=file:///var/mobile/Library/UserNotifications/********-****-****-****-************/Attachments/Image.jpeg
default 14:24:13.307667+0200 SpringBoard Successfully resolved request: resolvedRequest=<UNNotificationRequest: 0x281e05860; identifier: ******, content: <UNNotificationContent: 0x9be9db0a0; title: <redacted>, subtitle: (null), body: <redacted>, summaryArgument: , summaryArgumentCount: 0, categoryIdentifier: SINGLE, launchImageName: , threadIdentifier: ********, attachments: (
"<UNNotificationAttachment: 0x28053f480; identifier: Image, URL: file:///var/mobile/Library/UserNotifications/********-****-****-****-************/Attachments/Image.jpeg, type: public.jpeg, options: <UNNotificationAttachmentOptions: 0x28105a220; displayLocation: default; thumbnailGeneratorUserInfo: {\n}>>"
), badge: 3, sound: <UNNotificationSound: 0x283b4aca0>, realert: 0, interruptionLevel: 1, relevanceScore: 0.00, filterCriteria: (null), trigger: (null)>, resolutionSuccess=YES, continueOnFailure=NO
default 14:24:13.307780+0200 SpringBoard [com.*ourApp*] Notification serviced by the communication context service: 0. Has context: 0. Type: UNNotificationContentTypeDefault
default 14:24:13.307832+0200 SpringBoard Getting effectiveSectionInfo for section identifier: com.*ourApp*
default 14:24:13.307883+0200 SpringBoard [com.*ourApp*] Getting effective section info
default 14:24:13.308689+0200 SpringBoard [com.*ourApp*] Got effective section info [ hasResult: 1 ]