bug in tasksel

https://bugs.launchpad.net/ubuntu/+source/tasksel/+bug/150252
http://www.google.co.in/search?hl=en&safe=off&q=ubutnu+how+to+recover+damaged+desktop+tasksel&aq=f&aqi=&aql=&oq=&gs_rfai=
http://qa.ubuntu.com/reports/ogasawara/jaunty-buglist.html