This happened to me, an the reason why this was happening was because i did not have enough store on my computer. This process needs at least 4 GB free on your HardDrive
jcpriasc
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
From
Melbourne, VIC, Australia