This might be the solution.
I got this error a few days ago. It’s a new one for me. What caused this? Good question. I have no idea. Pro Tools wouldn’t really start after this.
As usual the Avid forums weren’t very helpful. Which led to this tweet…
1. Pro Tools error occurs. 2. Google the error. 3. Find Avid forum entry with no solution. 4. Go to step 2.
— Scott Troyer (@ScottTroyer) July 17, 2013
For the record, at the time the error occurred I was running OS 10.8.4 and Pro Tools 9.0.6 on a Mac Book Pro with an iLok 2.
I had to force quit Pro Tools. Then I unplugged my iLok 2 and plugged it into a different USB jack. Presto. Working again. Not sure what caused it, nor if switching USB jacks was actually the fix, but I did get it working again after doing so. Hope this helps somebody.
I confirmed again that switching which USB jack the iLok 2 was plugged into made the difference. I would think that this is a problem with that particular USB jack, but all other USB devices work just fine plugged in there. Hmm…