swift - UITableViewDiffableDataSource iPad 问题

Question

我有一条崩溃错误消息 - 由于未捕获的异常“NSInternalInconsistencyException”而终止应用程序，原因：“无效参数不满足：itemIdentifier”

我使用 UITableViewDiffableDataSource 来实现我的 UITableView。当我尝试“dataSource?.apply”时发生了崩溃。它只发生在 iPad 上，iPhone 工作正常

您知道什么是原因以及如何解决吗？

代码示例

class myVC: UIViewController {

    struct Section: Hashable {
        enum Kind: Hashable, CaseIterable {
            case `default`
            case full
        }
        
        let title: String? = nil
        let kind: Kind
        let items: [Item]
    }

    struct Item: Hashable {
        let title: String?
        let detailTitle: String?
        let subDetailTitle: String?
        let image: UIImage?
        let isActionable: Bool
        let action: ((Any?) -> Void)?
    }
    private typealias DataSource = UITableViewDiffableDataSource<Section, Item>
    private typealias Snapshot = NSDiffableDataSourceSnapshot<Section, Item>
    
    private var dataSource: DataSource?

    private var flag: Bool = false

    func setData(sections: [TimeLogDetailViewController.Section]) {
        var snapshot = Snapshot()
    
        
        sections.forEach { section in
            snapshot.appendSections([section])
            snapshot.appendItems(section.items, toSection: section)
        }
        
        dataSource?.apply(snapshot, animatingDifferences: false)
    }


   func configureSections() -> [TimeLogDetailViewController.Section] {
        var sections = [TimeLogDetailViewController.Section]()
        
        if !flag {
            sections.append(configFirstSection())
        } else {
            sections.append(emptySection(kind: .default))
            sections.append(configSecondSection())
        }
        return sections
    }
    
    func emptySection(kind: TimeLogDetailViewController.Section.Kind) -> TimeLogDetailViewController.Section {
        Section(kind: kind, items: [])
    }

    func configFirstSection() -> [Item] {
        [Item(title: "Title"))]
    }
    
    func configHeaderSectionItems() -> [Item] {
        return configFirstSection().append([Item(title: "SecondTitle")])
    }


}