Developing on Catalina?

Question

Created Apr ’21

Replies 3

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Hello all,

I'm just getting started with XCode and Swift. I'm trying to follow online tutorials, but I keep running into a snag: when I create a new macOS app on XCode 12.4 using SwiftUI, it creates an app for Big Sur. I'm running Catalina, and don't want to upgrade quite yet. Even if I change the minimum deployment target, it says that things like "main", "scene" and "WindowGroup" are only available in macOS 11.0 or newer.

Is there a way to configure XCode to produce code my Mac can run, so I can follow the online tutorials and get up to speed? Or am I stuck?

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Answer 1

Claude31 OP

Apr ’21

You cannot. I checked and got the same problem.

So, when you create the project:

select MacOS App (as you did)
but select AppKit App Delegate LifeCycle

Doing so you'll use SwiftUI 1.0 and not 2.0 which runs only on Big Sur.

I tested, it works.

If that works, don't forget to close the thread.

0

Answer 2

StephenNelson OP

Apr ’21

Thanks, that works!

0

Answer 3

jfarias_m OP

May ’21

Thanks. Worked for me, too!

0