NSPersistentCloudKitContainer

I'm running into trouble setting up sync using NSPersistentCloudKitContainer on an existing app. The app doesn't seem to sync data that was added to Core Data prior the app's iOS 13 update. For instance:1. I install an existing, pre-iOS 13, version of the app and create several records that are stored in Core Data.2. Over that existing install, I install the updated version that uses NSPersistentCloudKitContainer and create some additional new records.3. I install the same new version on a second device.Results: Records created in step 1 don't appear on the second device, but records created in step 2 do.Is there a step I'm missing in order to get existing data to sync? I'm wondering if this has something to do with the persistent history token, but I'm unsure how to tell NSPersistentCloudKitContainer it should start over on first launch.

I want my exiting project that's using Core Data to enable it use NSPersistentCloudKitContainer.So I set up my project as below documentation Setting Up Core Data with CloudKit says.https://developer.apple.com/documentation/coredata/mirroring_a_core_data_store_with_cloudkit/setting_up_core_data_with_cloudkitBut if I change NSPersistentContainer into NSPersistentCloudKitContainer an error occures.The error message is Use of undeclared type 'NSPersistentCloudKitContainer'.Why this happen?Are there anyone who can solve this problem?Please help me.Thanks in advance.

I am trying to build a very basic app using Core Data and CloudKit. I am logged into my CloudKit account on my Mac, and I followed the instructions to run the sample project that Apple provided on their website.Using the sample project as a guide, I tried to build a simpler app using the instructions provided here.However, after building trying to run my sample project, I get the following error stack trace in my console:CoreData: debug: CoreData+CloudKit: -[PFCloudKitOptionsValidator validateOptions:andStoreOptions:error:](35): Validating options: <NSCloudKitMirroringDelegateOptions: 0x60000097f960> containerIdentifier:iCloud.com.cybermedia.CloudKitTest1 initializeSchema:YES ckAssetThresholdBytes:<null> operationMemoryThresholdBytes:<null> useEncryptedStorage:NO automaticallyDownloadFileBackedFutures:NO automaticallyScheduleImportAndExportOperations:YES skipCloudKitSetup:NO preserveLegacyRecordMetadataBehavior:NO useDaemon:YES apsConnectionMachServiceName:<null> containerProvider:<

Is there a way to pause or disable syncing via NSPersistentCloudKitContainer at runtime? I want to give my users the option to enable or disable syncing, but there doesn't seem to be a good way to do it. I tried reloading the persistent stores and setting the store description's cloudKitContainerOptions to nil, but if I do that after first initialization, I get an error:error: Store opened without NSPersistentHistoryTrackingKey but previously had been opened with NSPersistentHistoryTrackingKey - Forcing into Read Only modeAnyone know of another way to do this?I submitted a request via Feedback Assistant for a flag to enable or disable syncing (FB6156182). I know the user could theoretically go into the Settings app and enable or disable iCloud access for the app as a whole, but that's not very discoverable, and disables all iCloud access. I'm looking for something a little more fine-grained (limited to the NSPersistentCloudKitContainer) and that I could control in my app's UI.

I try to figure out if it's possible to share a users core data events in one app, to another user with CKShare and CKRecord.I got the device sync up and running and can see the changes, also CloudKit dashboard has published the changes to production.However, when I have my NSManagedObject that I got either local or from another device, I try to call the following:let myEvent: // NSManagedObject from core datalet container: NSPersistentCloudKitContainer = AppDelegate.shared.containerlet record = container.record(for myEvent.objectID // not working// record is always nilThe receord is always nil, why?And is is possible to later pass the CKRecord in a UICloudSharingController to share it to another user?