I recently updated my macbook to OS X Yosemite and it is telling me this message when I try to use After Effects. In fact, it has my After Effects logo crossed out with a circle and a line through it. I received the Creative Suite for college and I do not own the Creative Cloud, as I cannot afford the monthly fee.
Is there no other solution than to get the Creative Cloud? Or is there a way I can use my CS6 After Effects 11.0?