I am getting the same error message and since this is my first app, and I am using my website name in reverse DNS format, I know the bundle does not already exist.

The following worked for me. Looks like we have to include the team id (generated by Apple) in front of the bundle identifier when registering an identifier in the developer account. Current syntax is AG23SE13.com.domainname.appname. For more information, click on the following link, and click on APP ID. A popup will appear with the details: https://help.apple.com/developer-account/#/devf2eb157f8

In addition to the stuff I mentioned above, I deleted Xcode again, reinstalled MacOS, and then reinstalled Xcode 13.4.1 again, and that still didn't work. Found the solution on the following website "Fuse Connection" https://forums.fusetools.com/t/how-to-fix-xcode-when-installing-the-required-components-breaks/7914 Go to Finder Aplications -> Xcode Right Click Xcode Show Package contents Then go to /Contents/Resources/Packages/ Install MobileDevice.pkg ... I tried Xcode again, but it still didn't work, so I installed all the 4 packages listed in the packages folder, tried Xcode again, and then it worked!