I've run into a bit of a pickle, messing about with betas and older versions of XCode. Then, thinking this was the cause of my problems building, I tried to delete XCode and re-install. Now everything is hosed, none of the SImulators work, I get weird messages saying they are not installed.
There are several articles on this forum which are 2-4 years old - none of them seem to apply to 10.x.
Is there a proper way to completely wipe XCode 10.x from a system so I can download it fresh and just start over?