Can you launch AE from the dock or applications folder normally? If so, can you open those projects from inside AE?
Yes, AE starts without any problems.
And inside After effects i can open every project.
But when i double click on a "aep." file in the finder After Effects starts but nothing happends.
Even when AE is already open. It doesn't work either when im pulling a file onto the AE icon in the dock.
That is odd. I haven't experienced that issue on my Mac. I wonder what is causing it. If it were a widespread issue, I would expect to have seen a lot more posts about it.
I wonder if it's a Yosemite thing and upgrading to El Capitan would fix it or if it's something to do with the hardware and software you've got in your machine that's interfering.
Either way, it wouldn't hurt to file a bug report and give them as much information as you can (including the answers you just gave me).
Thanks, i will file a bug report… at least i can still work. :-)
If i get any response wich is helpfull, i will post it.