I have the exact same issue, with the exact same scenario you have, although I transferred ownership of the organization over a year ago. I have a ticket open with Apple, and I'll keep this updated if I find anything.

Ok, I figured it out after thinking about it a little more. Replace the line from the tutorial with this line of code: ProgressView(value: 5.0, total: 15.0) The tutorial shows the line to be ProgressView(value: 5, total: 15), which makes value and total Int values. Swift is looking for Binary Floating Point values, so changing 5 to 5.0 and 15 to 15.0 solves the error. Hope this helps!

I have the exact same issue after refactoring as well.

Also, thank you nameless Dev Tool Engineer! :) With both your and mhanlon99’s help, I’ve completed both chapters 1 and 2. What threw me off was the code snippets that were shown on the Developer App, but not necessarily needed in Swift Playgrounds. Also, the Swan’s Quest shows up under the “WWDC20 Coding and Design Starter Kit” topic/entry, which I figured would be a good beginner start. It turns out I was making things harder than they really were. Thanks again to both of you for the help! I’ll definitely check out the other swift playgrounds you mentioned as well. Who knows, maybe one of these days I’ll develop an app that is actually useful! :)

I really appreciate the reply and the help! I'll check out the book as well as your video, and thanks again for the friendly push ;)

You can also open the downloaded zip file in Files, which will expand the playground file. Then you can open this file in Playgrounds via the Files app. Have fun!