I have tried with this but couldn\'t solve my issue - Ineligible Devices section.
I m getting an error The Developer Disk image could not be mounted error w
You will need to upgrade to Xcode 6.4 in order to support iOS 8.4 development -
From the Xcode 6.4 release notes -
New Features Xcode 6.4 includes the iOS 8.4 SDK to support development for iOS 8.4 apps.
New Features