I haven't used Xcode in quite a while, and recently installed Xcode Version 9.3 (9E145) from the app store. While going through and getting everything settled there, I switched over to the "Server and Bots" tab, where it was recommending I upgrade Xcode Server.
When I tapped through the keys to do the upgrade, it returned an error:
xcode server user: Error Domain=XCS Administration.XCS Administration Error Code=3 "Could not find an existing user with name 'xcodeserver'."
I didn't think I had Xcode Server running previously, so I suspect I'm in some half-state where it can't clean up or reset. Is there a way to reset this, even wiping out anything that may have been there previously and resetting things to a fresh installation state?