Update in iPhoto error.

Hello. So in order to get my iPhone 6s up and running i had to update my mid 2010 mac mini from snow leopard to mountain lion, in order to update iTunes, so that it was compatible with my new 6s. So i did the mountain lion install and checked for updates, there were several. I clicked "update all" and every time the install looked like it was about to be complete, an error would occur. I tried a few times with the same result.

So, i installed each update, one at a time until i came to the one that was causing the error. It was the iPhoto update. For some reason i keep getting an error and I'm not sure why. Does anyone have any advice? Thanks, O