I am having the same problem here, and now i want to remove khweeteur completely. The only problem is that apt-get wont let me. :P
I tried the mentioned workaround, and that didnt work (cant find the needed files) and "apt-get remove --purge khweeteur" didnt work either.
Can anyone tell me what i could try next?

Edit: Allready fixed by installing the normal khweeteur.
I initially installed khweeteur experimental, due to a "twitter" search in fapman. Thanks anyway