fatal error: unexpectedly found nil while unwrapping an Optional value in UITableViewCell

Question

Similar question is asked here but that doesn't solve this problem for me. I've added a tableView in a ViewController. Made extended the class with it's dataSource and Delegate and added the required methods for it.
Then I made a prototype cell in this table (Not the separate .xib for it) and made a class for that TableViewCell and collected the @IBOutlet:

    @IBOutlet weak var titleOfAccount: UILabel!
    @IBOutlet weak var lastModified: UILabel!

    @IBOutlet weak var accountImage: UIImageView!
    @IBOutlet weak var cellView: UIView!

Then in cellForRowAt method of table view when I wrote

cell.titleOfAccount.text = "Hello World"
cell.lastModified.text = "Last Modified: 21 May 2017"

and ran the code it crashed with this error.

fatal error: unexpectedly found nil while unwrapping an Optional value

What I did after searching here and there I went back to tableViewCell class and changed ! to ? and updated the code in cellForRowAt as:

 cell.titleOfAccount?.text = "Hello World"
 cell.lastModified?.text = "Last Modified: 21 May 2017"

Now when I ran the program it runs successfully but there is no cell appearing in the tableView and I've also implemented the method:

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 3;
    }

Here is the full code of my cellForRowAt method:

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let cell: AccountsTableViewCell = self.tableView.dequeueReusableCell(withIdentifier: cellReuseIdentifier) as! AccountsTableViewCell

        cell.backgroundColor = UIColor.clear
        cell.clipsToBounds = true

        cell.cellView.layer.shadowColor = UIColor.black.cgColor
        cell.cellView.layer.shadowOpacity = 1
        cell.cellView.layer.shadowOffset = CGSize.zero
        cell.cellView.layer.shadowRadius = 10

        cell.titleOfAccount.text = "Hello World"
        cell.lastModified.text = "Last Modified: 21 May 2017"
        cell.accountImage.image = UIImage(named: "fb")

        return cell
    }

P.S. I've also added self.tableView.register(AccountsTableViewCell.self, forCellReuseIdentifier: cellReuseIdentifier) in viewDidLoad

Answer 1

I think you can resolve this by modify the code in the ViewController.

Use below

self.tableView.register(UINib(nibName: "AccountsTableViewCell", bundle: nil), forCellReuseIdentifier: cellReuseIdentifier)

instead of

self.tableView.register(AccountsTableViewCell.self, forCellReuseIdentifier: cellReuseIdentifier)