问题
When I update Xcode to Version 10 GM, build success, but Simulator can't work! with error:
The operation couldn’t be completed. (DVTCoreSimulatorAdditionsErrorDomain error 0.)
回答1:
run xcrun simctl erase all in Terminal. It should solve the issue.
i think its a bug from Apple.
回答2:
I had the same issue. Not 1 simulator worked and the UIStoryboard was not rendering any graphics. The solution was to restart my mac. Not just Xcode but your Mac (laptop, mac mini, whatever you might be using)
来源：https://stackoverflow.com/questions/52324696/dvtcoresimulatoradditionserrordomain-xcode-10gm