Same issue here: The operation couldn’t be completed. (IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $1154e0d9c).DownloadError error 3.) Domain: IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $1154e0d9c).DownloadError Code: 3 User Info: { DVTErrorCreationDateKey = "2024-06-12 14:57:15 +0000"; } There was an error processing the asset. Domain: IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $1154e0d9c).DownloadError Code: 3 System Information macOS Version 15.0 (Build 24A5264n) Xcode 16.0 (23037.4) (Build 16A5171c) Timestamp: 2024-06-12T16:57:15+02:00

I have the exact same error. For me it does work when building for the iOS 17.5 simulator, and not for the iOS 18 simulator. *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'The specified URI is not a valid Core Data URI: x-coredata:///Workout/5F9352C2-50DA-422B-BDF6-C3BA3AD73067

Same issue here, worked perfectly before.