I have decided to try photos out instead of aperture. I apparamtly have two libraries. One for aperture and one for iphotos. I tried to import the iphoto library to aperture, but it said it had to be upgraded to the newest iphoto format, which was only possible through launching it in the new photos app. I did this and it loaded the iphotos library. The problem is that I am now unable to select the library in aperture and import. It is greyed out. TL;DR I need help to combine multiple iphoto and aperture libraries into one.