问题
I am unable to run on simulator with XCode 9. I am getting this error.
Currently I am using macOS Sierra 10.12.6
回答1:
You mention you took it through airdrop. You must move the xcode.app to applications folder, then do this:
sudo xattr -d com.apple.quarantine /Applications/Xcode.app/Contents/Developer/Applications/Simulator.app
You must make the gatekeeper let your xcode and simulator app to continue on using it without verifying it.
来源：https://stackoverflow.com/questions/46239122/unable-to-run-on-simulator-with-xcode-9-0