How to remove a deb package manually
Some times when you install a new deb package, the system will be broken. We may have to remove the package.
For this , you can try the following. ( Assuming pidgin is the broken package)
# apt-get remove pidgin
#dpkg -P pidgin
#dpkg -force-all -r pidgin
These methods can also fail some time. Your only way out will be a manual removal of packages, which can be achieved as detailed below.
a) Get a list of files from the package
# dpkg -L pidgin
b) Remove the files one by one.
c) It is also suggested that you run
# apt-get remove pidgin
after manual removal.