I am new to app building and am following a beginner’s course. They are having me do a simple exercise to replace an image element of a ‘one’ dice with a ‘six’ dice when running the simulator.

I have copied their code but when running the simulator I’m getting the errors shown in the screenshots. Could someone please assist in what I am doing wrong?

On top of this I also have created a simple line of code of ‘diceImageView1.alpha = 0.5’ to affect the alpha of dice ‘one’ without having to run the simulator, but this is also not working.error codefull code

Any help is much appreciated!

Replacing the image element when running the app.