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[Int] stored in CoreData w CloudKit

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I'm working on a SwiftUI app and need to track an array of type Int, but I'm getting an error back about not being able to transform an [Int].

CoreData: warning: Property 'teamItems' on Entity 'TeamInfo' is using nil or an insecure NSValueTransformer.  Please switch to using "NSSecureUnarchiveFromData" or a subclass of NSSecureUnarchiveFromDataTransformer instead.

The app does eventually launch, but seems to take an inordinate amount of time (though this could be related to accesing CloudKit on the first run???

Any suggestions, all appreciated.

Cheers!

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