iOS Simulator is Crashing on startup

Question

I am using Xcode 12 with the iOS 13.4 Simulator. On bootup, I get this crash report.

Failed to start launchd sim: could not bind to session, launchd sim may have crashed or quit responding.

What can cause this? It works in Xcode 11 but not in Xcode 12.

Answer 1

Can you make yourself Admin and run below commands on Terminal:

sudo chown root:admin /tmp
sudo chmod 1777 /tmp
sudo chown root:wheel /private/tmp
sudo chmod 1777 /private/tmp

Answer 2

So it problem was my project had permissions that it can only run in sudo mode. When I tried to run the simulator in sudo mode, it failed. I had to change the permissions of my project, to be able to run in non sudo mode. When this happened, I could run the iOS simulator perfectly fine.