Check out this link to manually generate a provisioning profile. https://developer.apple.com/help/account/manage-profiles/create-a-development-provisioning-profile/ However, many of us find it much easier to let Xcode automatically generate the provisioning profile. See the image below.

I found the issue. For some reason, I had an App Group entitlement that was unnecessary. I removed it and it now launches.

The issue has been fixed for me in Xcode 15.1 Beta.

My feedback number for this go around is FB13225056.

And yes, I tried to change the bundle id and then back. The changed id worked, but the correct one doesn't.

Apple's answer is below this line. Some screenshots are always required. Even though your app will not run on those devices, it will still be displayed and just say it is not downloadable on that device. Also, 5.5 screenshots are used for scaling up and down depending on the users device and what screenshots the developer has or has not provided. For a list of required screenshots, you can visit the link below: https://developer.apple.com/help/app-store-connect/reference/screenshot-specifications

I generated a profile and used that instead of the automatic profile and it still doesn't launch under Destination Mac (Designed for iPad).

Where can I find the definition of the error codes?

You should call Apple about this. https://developer.apple.com/contact/#!/topic/select

I got an answer from Apple on this. I think I shouldn't have posted this to begin with.

I submitted this version of the app to the App Store. It passed. I also purchased my app so I could run the purchased app when the new version came out. It came out today and the app launched on my Mac. I still need this to be fixed as development is hindered.

Well, it got unfixed. Something is goofed up here.

I fixed it. I temporarily changed the bundle id slightly. It launched and ran. Then I changed the bundle id back and it launched and ran.

Here's more info on this. Could not launch “MyAppName” Domain: IDELaunchErrorDomain Code: 20 Recovery Suggestion: Runningboard has returned error 5. Please check the system logs for the underlying cause of the error. User Info: { DVTErrorCreationDateKey = "2023-09-27 03:23:51 +0000"; DVTRadarComponentKey = 968756; IDERunOperationFailingWorker = IDELaunchServicesLauncher; } The operation couldn’t be completed. Launch failed. Domain: RBSRequestErrorDomain Code: 5 Failure Reason: Launch failed. Launchd job spawn failed Domain: NSPOSIXErrorDomain Code: 153

You need to define a class where you publish your data, similar to the below. Perhaps you have done this already as you say it works on the iPhone and iPad. class AuthViewModel: ObservableObject { @Published var profilePicIsLoading = false etc... }