After I updated to Mac OS Catalina I'm no more able to run the simulator. I always get this: "Unable to boot the Simulator - launchd failed to respond".I'm runningMac OS 10.15 CatalinaXcode 10.3I can't update to Xcode 11 (anyway my collegue installed Xcode 11 and he's getting the same error too)I already try these:- Simulator/Hardware/Erase all contents and services... (the result was a black screen on simulator and nothing happened)- Delete all simulators and download them again- /private/tmp directorysudo mkdir /private/tmp sudo chmod 1777 /private/tmp- I tried thisxcrun simctl shutdown all xcrun simctl delete $(xcrun simctl list | grep -o '[0-9A-F]\{8\}-[0-9A-F]\{4\}-[0-9A-F]\{4\}-[0-9A-F]\{4\}-[0-9A-F]\{12\}' | xargs) xcrun simctl delete unavailableNothing seems working... The simulator looks working in the morning, than after few builds it stop working.Ideas?