Which Mac OS? What version (exactly) of CS6 are you running? Both Premiere and AE's version numbers, please.
Has this worked for you in the past?
Have you tried simply dragging an AE project from Finder into your Premiere project's Project panel?
I'm not at home so I can't provide the exact version right now but I can answer your last question. Yes, I have wanted to try dragging in the AE Project from Finder but I can't find it. I have many AE Projects saved that I have used in past videos.. but I can't find them with Finder. I can't browse to get to them, but I know they are there. Do you know what folder (path) AE saves projects to? It is VERY frustrating.
I have many AE Projects saved that I have used in past videos.. but I can't find them with Finder.
I'm sorry, I misunderstood your issue. I was thinking you were searching by using Premiere's import dialogue not by using Finder itself.
Do you know what folder (path) AE saves projects to?
Yes. It saves them wherever you tell it to. You can navigate to anywhere you would like and save your project file. Heck, you could save it in your iTunes folder if you wanted to.
Why not try creating a new file with a very basic composition (maybe a square wiggling around), save it (making sure of the exact location to which you are saving it), then go in Finder and drag that file into Premiere.