I just started receiving an error message when I attempt to copy vector objects from Ai to Ps. I try to paste it as a Smart Object and I get this message:
"Could not complete the Paste command because the clipboard data is empty or invalid."
I've also tried to paste it as the other options and still get the same message. I tried to copy/paste an image from the web into the same Ps document and that worked fine. Just seems to be from Ai.
3.06 GHz Intel Core 2 Duo
8 GB 1067 MHz DDR3
NVIDIA GeForce 9600M GT 512 MB
Mac OS X Lion 10.7.1 (11B26)
Ps CS5 12.0.4 x64
Ai CS5 15.0.2
Check the clipboard options in Illustrator, and make sure it is exporting AICB *and* PDF data on the clipboard.
Another possibility is that some other app or utility is messing up the clipboard contents (yes, it happens, like JDownloader).
I was having the same problem and it was driving me mad. I checked the illustrator AICB and PDF and they were both checked. I ended up closing all of my programs and then I reopened them a few minutes later. No more error messages after that.
Having the same issue in CS5 - copy from Illustrator,paste in Photoshop. I closed Safari (5.1) and it pasted fine. I've had similar issues before which were resolved by closing a browser. In my experience, suspect browsers have been Chrome and Safari. Not sure why this occurs, but something to try next time. :-)