Kolab groupware(Mail Server) fails to install because of dependency problems

It's more than 10 days that I'm working on installing Kolab on ubuntu, but with no success. I used the guide on its site, but it's not working at all. I did the following works:

1. Adding the following addresses to sources.list

   • deb http://mirror.kolabsys.com/pub/ubuntu/kolab-3.0/ precise release updates
   • deb-src http://mirror.kolabsys.com/pub/ubuntu/kolab-3.0/ precise release updates

2. After that, I make preferences at /etc/apt/preferences and add the following lines to it: Package: * Pin: origin mirror.kolabsys.com Pin-Priority: 501

3. Then update the repository sudo apt-get update. Everythings up to here going true.

4. The problems appear here, when installing the Kolab, sudo apt-get install kolab. The errors are exactly like your ones.

5. For a solution I installed aptitude, sudo apt-get aptitude.

6. Then run the following command: sudo aptitude install kolab. The following lines appear in terminal:
   
   that I accepted it by entering Y and everythings going to install.

7. Finally, after some moments everythings installed, but according the chapter 4 of guide for running setup-kolab, it prompt me that command not found.
   

I don't know what to do, That's all of my experiences.

I would suggest you to follow instalation instructions from here

http://docs.kolab.org/en-US/Kolab_Groupware/3.0/html/Community_Installation_Guide/index.html

because few people over there are saying they can't get working kolbag v. 2.x on ubuntu, but kolab 3.x is working

https://kolab.org/blog/henning-holly/2013/04/28/kolab-3-collaboration-server-ubuntu

and! ubntu is not a priority for them, you can try to use openSUSE as server, I guess..