Hello everyone! I hope you're all safe and well.

Just to make sure I understood reading and writing on UserDefaults, we can safely use defaults.set(highestScore, forKey: "HighScore") to write and highestScore = defaults.integer(forKey: "HighScore") to read when we know for sure the type of data we're working with (like in the Challenges) and use NSCoding or Codable only for our own classes, right?

I am trying to solve Challenge 2 of Project 12 by saving the player’s highest score, and showing a special message if their new score beat the previous high score, but I am getting this error:

[Presentation] Attempt to present <UIAlertController: 0x7fa6c4875c00> on <UINavigationController: 0x7fa6c581d800> (from <project2.ViewController: 0x7fa6c45099d0>) which is already presenting <UIAlertController: 0x7fa6c583a800>.

I check several conditions in the @IBAction func buttomTapped(_ sender: UIButton) method that present several UIAlertController depending on the result. From what I've read on Stack Over Flow, we're supposed to dismiss the current UIAlertController before presenting a new one using closures, but I am unable to understand how it's done. Has anyone experienced this?

Thanks in advance for your time and response. KB