Unable to create a simulator via simctl sometimes

Originator:masayuki.wakizaka
Number:rdar://FB8222633 Date Originated:Jul 31, 2020 at 2:31 PM
Status:Open Resolved:
Product:XcodeKit Product Version:
Classification:Incorrect/Unexpected Behavior Reproducible:sometimes
 
After installing Xcode 12.0 beta 3, sometimes it can't create a simulator via `xcrun simctl create`. Even uninstalling the Xcode doesn't help. I think it is maybe because uninstalling the Xcode didn't change the version of simctl. 

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$ xcrun simctl create iphone8_20200731135103_55f2e27a-1fa9-486f-b493-6523b9782ee6 'iPhone 8' com.apple.CoreSimulator.SimRuntime.iOS-13-4
Unable to create a device for device type: iPhone 8 (com.apple.CoreSimulator.SimDeviceType.iPhone-8), runtime: iOS 13.4 (13.4 - 17E255) - com.apple.CoreSimulator.SimRuntime.iOS-13-4 (unavailable, failed to open liblaunch_sim.dylib)
An error was encountered processing the command (domain=com.apple.CoreSimulator.SimError, code=401):
The iOS 13.4 simulator runtime is not available.
failed to open liblaunch_sim.dylib
Unable to open liblaunch_sim.dylib.  Try reinstalling Xcode or the simulator runtime.
Underlying error (domain=NSPOSIXErrorDomain, code=53):
	The operation couldn’t be completed. XPC error talking to SimLaunchHostService: <error: 0x7fff8e9169a0> { count = 1, transaction: 0, voucher = 0x0, contents =
	"XPCErrorDescription" => <string: 0x7fff8e916b08> { length = 18, contents = "Connection invalid" }
}
	XPC error talking to SimLaunchHostService: <error: 0x7fff8e9169a0> { count = 1, transaction: 0, voucher = 0x0, contents =
	"XPCErrorDescription" => <string: 0x7fff8e916b08> { length = 18, contents = "Connection invalid" }

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$ xcrun simctl --version
@(#)PROGRAM:simctl  PROJECT:CoreSimulator-732.7
$ xcodebuild -version
Xcode 11.4
Build version 11E146
$ ls /Library/Developer/CoreSimulator/Profiles/Runtimes/
iOS 11.4.simruntime	iOS 12.4.simruntime	iOS 13.1.simruntime

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