So the thing is I'm trying to install Cmake and cmake-curses-gui. I have updated the system with apt-get-update.

sudo apt-get install cmake   
Reading package lists... Done   
Building dependency tree   
Reading state information... Done   
Package cmake is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'cmake' has no installation candidate

sudo apt-get install cmake-curses-gui   
Reading package lists... Done   
Building dependency tree        
Reading state information... Done   
E: Unable to locate package cmake-curses-gui   

That's strange. Can anyone give some pointers?

Pastbin sources.list :- http://pastebin.com/DufycYfZ