i created .deb package by this guide,
for my QT application, i was build it locally by this command
debuild -uc -us
and everything goes perfect except some minor 'w' on 'lintian' output.

when i open the package on the 'ubuntu software center' i can install it, but after the installation , i cant remove it on the 'software center' just reinstall it.
(with this command 'sudo apt-get --purge remove' the program is removed)

why is that?

i'm using ubuntu 12.04 amd64.

thanks a lot!