Customization

I am trying to customize a cell prototype. Here is a cell in my main storyboard.

I have my own cell class.

class UserListTableViewCell: UITableViewCell {
    @IBOutlet weak var nameLabel: UILabel!
    @IBOutlet weak var dateCreatedLabel: UILabel!
    @IBOutlet weak var dateOfLastLoginLabel: UILabel!
}

      

        
        
        
      

    

It is linked to the cell prototype in the same storyboard.

And just, of course, here's the custom class name in the inspector.

Finally, in my opinion, the controller has the following extension that implements the protocol UITableViewDataSource

.

extension UserListViewController: UITableViewDataSource {
    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return users.count
    }

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("userListCell", forIndexPath: indexPath) as! UserListTableViewCell
        cell.nameLabel.text = users[indexPath.row].name
        return cell
    }
}

      

        
        
        
      

    

Along with the method viewDidLoad

.

override func viewDidLoad() {
    super.viewDidLoad()
    tableView.dataSource = self
    tableView.tableHeaderView = tableHeaderView
    tableView.registerClass(UserListTableViewCell.self, forCellReuseIdentifier: "userListCell")
}

      

        
        
        
      

    

Problem

When I run this in the simulator, I get a crash when working with fatal error: unexpectedly found nil while unwrapping an Optional value

. All my labels are in the stack trace nil

.

What's going on here and how can I fix it?