[Koha] Broken packages, Unmet dependencies

[Javed Sahil]

Hi All,
 I removed libsasl2-2,
sudo apt-get remove libsasl2-2
It started removing other packages too, i was shaked, hurriedly i pressed
ctrl + x, ctrl + c,
then i saw error messag something like this:
The process was intrupted.

Now i have lost the following:

Gnome ubuntu destop
access to Koha opac and Koha staff client

And packages Like libreoffice, gnome, gdm3, apache2, and many more

If i try to install them error shows;

You have held broken packages,
sometimes says already installed
could not be installed, it has unmet dependencies.
when try to remove any package  it says,;
not intalled.
i am stucked
how to get rid of unmet dependeCies and broken packages,

I have tried,
sudo su
clean
autoclean
autoremove
apt-get clean
apt-get autoclean
apt-get autoremove
apt-get update
apt-get upgrade

nothing worked.

Help plz

Javed.