I can confirm this error, specifically the same one as bigstar above.
I deleted and re-installed Fubar_LocationFu with WAU, asI noticed that there was an update. Still didn't work. I checked to see that there was indeed a LibBabble-Spell-3.0 folder in the Lib Folder of LocationFu, it was there.
I then installed the full babbleLib2.2 Library separately from WAU for good measure, btu I still get the error.
Not sure if this is related, but I've been trying out a bunch of new things with my UI. Specifically and recently: eePanels, PitBull, SharedMedia, Xart, Quartz
There's nothing there that seems like it would mess with the BabbleLibs, but of course I'm freaked out that I may have messed it up myself, just wanted to throw that out there...