xcode 9 simulator error unable to boot the simulator launchd failed to respond mac os sierra
ios, ios-simulator, xcode
Solution
In this case, `launchd` is crashing when trying to launch.
This could be as a result of deleting the `/private/tmp` folder.
To resolve this, I typed the following commands on my terminal:
sudo mkdir /private/tmp
sudo chmod 1777 /private/tmp
Problem
xcode 9 simulator error unable to boot the simulator launchd failed to respond mac os sierra I ave tried deleting contents from derived data, restarting Xcode , Uninstall and install of xcode etc.