Did your iOS 17 Simulators get deleted recently?
The macOS anti-malware system XProtect got an update a couple of days ago, XProtectPayload 132, it found a false positive in the simulator runtime disk image and so would try and eliminate it. An updated 133 is out, check for updates and it should download the security update.
Some further info that’s been shared:
@huwr confirmed a restart will fix Xcode, I was careful to say XProtect would “try” to eliminate it earlier, turns out it unmounts a disk image and fails to delete it. You don’t need to download the runtime again, but that works too.
@gfontenot shared this command to get the update immediately
$ softwareupdate --install --include-config-data XProtectPayloads_10_15-133
Ashton