Update not available with this Apple ID
This is the message that I continue to get when I try to update my iMac software and iPhoto. The App Store explains that the update is not available for this Apple ID because it was bought by a different user or the item was refunded or cancelled. The last 2 do not apply to me because I am the sole owner of this close to 10 year old computer, but the first might. I had to change my Apple ID from a yahoo.com address to a gmail.com address. This is the only thing that I can think of that could be causing the issue. Got any ideas how to fix it because I am hitting a brick wall.
iMac 21.5", OS X 10.11