SwiftData error on IOS18, Never access a full future backing data

Question

Created Jul ’24

Replies 4

Boosts 9

Participants 5

try to update my app from iOS 17 to io 18, I'm using SwiftData to save the data on the memory, on iOS 17 all works fine but I tried to export my app to iOS 18 and I get a strange error when I try to delate a playlist from SwiftData memory.

Thread 10: Fatal error: Never access a full future backing data - PersistentIdentifier(id: SwiftData.PersistentIdentifier.ID(url: x-coredata://4885953A-BDB2-4CD1-9299-B2FBBB899EB7/PlaylistItem/p372), implementation: SwiftData.PersistentIdentifierImplementation) with Optional(B2A80504-2FE1-4C86-8341-3DDE8B6AB913)

the code where this error happen is very simple,

  func deletePlaylist(_ playlist: PlayListModel) async throws {
        print("attempt to delate :, \(playlist.playlistName)")
        context.delete(playlist)
        try context.save() // error here on the save 
    }

Error only happen on iOS 18 not on the 17.

Boost

Answer 1

dimsumthinking OP

Jul ’24

I'm seeing the same thing but only when I attempt to delete a record that is somehow corrupted

1

Answer 2

MrMoepheus OP

Jul ’24

I am seeing the same error when I try to delete models that have a relationship set to cascade delete. The crash does not occur if the relationship is empty when deleting the model.

FB14041374

3

Answer 3

anmol.rajpal OP

Jul ’24

It's a different error but in a same sense that Bindings try to access deleted SwiftData entities rather than switching to default values.

Thread 1: Fatal error: Context is missing for Optional(SwiftData.PersistentIdentifier(id: SwiftData.PersistentIdentifier.ID(url: x-coredata://A6A3F87C-9EA0-43F7-BD6D-A31364117257/Profile/p5), implementation: SwiftData.PersistentIdentifierImplementation))

1

Answer 4

Lxdro OP

Aug ’24

same error, no way to fix yet?

0