Xcode not supported for iOS 11.3 by Xcode 9.2 needed 9.3

Question

Apparently, with the latest IOS update, my version of Xcode could not build due to the following error.

Could not locate device support files. This iPhone

Answer 1

please add both of "11.3 (15E216)" and "11.3 (15E217)" keep all of them inside /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform