Just download latest OS SDK(Available iOS 9 to iOS 14) and paste it on respective location .
Unzipped downloaded file
Right-click on Xcode and click on Show Package Content
then paste your file on path
Contents > Developer > Platforms > iPhoneOS.platforms > DeviceSupport
Is it very convenient, saving the trouble of updating Xcode. what? You can't find a new Device Support file, Ok, you can copy it out from your friend's latest Xcode, or download from here
The added iOS Disk image for iOS 12.4, 12.3, 13.0, and iOS 14.0
Download Developer disk image for iOS 12.1 from https://github.com/xushuduo/Xcode-iOS-Developer-Disk-Image/releases and perform following steps
Thats It....
Please upgrade your Xcode
IDE to 10.1
.
Xcode 10.1 Release Notes can be found at, https://developer.apple.com/documentation/xcode_release_notes/xcode_10_1_release_notes/
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