I don't know how.
At the end of those instructions, I get:
sudo apt-get install gnome-control-center-dbgsym=3.2.2-0ubuntu1
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Version '3.2.2-0ubuntu1' for 'gnome-control-center-dbgsym' was not found
/gnome-control-center/, did you configure the right oneiric-updates
source?
Yes, but I was missing a 1: at the beginning of the version number.
Backtrace attached now.
thanks!
** Attachment added: gdb-gnome-control-center.txt