can´t open Aperture?!
A few days ago I bougth Aperture. Aperture worked fine, I imported some pictures from "Adobe Bridge" to to Aperture, that also worked fine but. I closed Aperture. But when I opened Aperture again i woulden open! and i get this error message: To open this iPhoto library in Aperture, it first needs to be upgraded. Verify that you have iPhoto 9.3 or later. Then open the library in iPhoto to upgrade it.
I did exactly the thing the error message told me. then I tried to open aperture again, but i still get the same error message! please I need help!!
MacBook Pro (13-inch Early 2011)