The error message is received on the second last line of the SelectProductsView // Filter & Sort initialisation init(sortOrder: ProductSortOrder2, filterString: String) { let sortDescriptors: [SortDescriptor] = switch sortOrder { case .name: [SortDescriptor(\Product.name)] } let predicate = #Predicate { product in product.name.localizedStandardContains(filterString) || filterString.isEmpty } _products = Query(filter: predicate, sort: sortDescriptors) }