Comment 51 for bug 349237

In my case, it was some momentary glitch, perhaps. I've been running Maverick since it came out, and this morning was the first time seeing the error. Yesterday, I was altering the Startup Applications preferences, and deleted an application from the list that was being started twice -- once from explicitly adding it to the list and once from "Save all running applications". I reinstalled all the related packages, and rebooted. No problem on the second reboot. Haven't tried again...