我得到这个错误“只能删除一个对象从领域它属于”每次我试图删除一个对象从领域对我的tableview.这里是相关的代码：

let realm = try! Realm()
var checklists = [ChecklistDataModel]()

override func viewWillAppear(_ animated: Bool) {

    checklists = []
    let getChecklists = realm.objects(ChecklistDataModel.self)

    for item in getChecklists{

        let newChecklist = ChecklistDataModel()
        newChecklist.name = item.name
        newChecklist.note = item.note

        checklists.append(newChecklist)
    }

    tableView.reloadData()

}

override func numberOfSections(in tableView: UITableView) -> Int {
    return 1
}

override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return checklists.count
}

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistCell", for: indexPath) as! ListsTableViewCell

    cell.name.text = checklists[indexPath.row].name
    return cell
}

override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
    if editingStyle == .delete {

        // Delete the row from the data source
        try! realm.write {
            realm.delete(checklists[indexPath.row])
        }

        //delete locally
        checklists.remove(at: indexPath.row)

        self.tableView.deleteRows(at: [indexPath], with: .fade)
    }
}

我知道这一部分要具体说明：

// Delete the row from the data source
        try! realm.write {
            realm.delete(checklists[indexPath.row])
        }

有什么想法是怎么回事？提前感谢！