I am new to Swift. Going through the iTour tutorial. Preview crashes when trying to preview my app. When I reopen the application I get the message " You can't use this version of the application "iTour" with this version of macOS." I had to update my version of macOS yesterday while going through the tutorial for iTour. Updated to Sonoma 14.3.1. I am running Xcode version 15.2. I only got through the Querying SwiftData objects in SwiftUI portion of the tutorial. Since I updated macOS while writing the app and started a new app and have the same results. How do I resolve the error message?

Have a look at this thread. It "might" help.

forums.developer.apple.com/forums/thread/726838

Steve