Use the Pro Import After Effects command to import the AAF file.
After Effects MUST be on the same computer as Avid. The AAF file is NOT a video file. It is a set of pointers to the edited video & audio files in an Avid sequence. To see and hear the files, After Effects must be able to access the original media files in Avid.
i sure AE must be on he same computer as Avid MC. I used Avid MC exported to AAF files, But when I import into AE then receive a notification that does not support this format.
Good... but are you using AE's Pro Import feature?
File>Import>Pro Import After Effects
You didn't say yes or no.
I using AE's pro import from FILE> PROIMPORT AFTER EFFECTS.
Try to drag and drop AAF into Ae
If you have Premiere Pro installed on this machine, it might be worthwhile to see if you can open it through there. You can easily send it through to AE from there if it works.