I have updated my iOS device to iOS 10, now Xcode says \"Could not find Developer Disk Image\" while trying to run on iPhone using Xcode 7.3.1 How can I fix the problem and make
You may try downloading a Developer Disk Image for the required iOS version, as of your mobile device; If you only want a quick and simple solution..
You need to goto:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/
and paste the Developer Disk Image you just manually downloaded.