I had the same issue in 12.04 LTS because of an outdated version of Nautilus. I solved using an update and dist-upgrade:

sudo apt-get update
sudo apt-get dist-upgrade
nautilus -q


Hope it helps.

Ubuntu 11.04 "The destination is read-only" - thumbdrive - GNOME error?
I read somewhere here on stackoverflow that using NuSoap is not a good idea and its dead. If it is, what is the best possible solution to create WSDL files. I was just nusoap just for creating wsdl files and I never got the webservice to work
