I've gotten this every once in a while when trying to launch it from Management Studio. The 'fix' is to keep trying to launch it (sometimes you just try repeatedly, other times, you wait a couple of minutes and try again).
Something about a 'timing issue' between the IPC communications layer and SQL Server. Yeah, I don't know what that really means either, but that's what I found on various forums.
Update: if you try to cancel a running analysis or kill it, it seems to go bye-bye for good till the next reboot.