I can't install <krita>, I am Debian 7 user.
# apt-get -d install krita
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
krita : Depends: calligra-libs (= 1:2.4.4-3) but it is not going to be installed
Depends: kde-runtime but it is not going to be installed
E: Unable to correct problems, you have held broken packages.----------------------------------------------------------
# cat /etc/apt/sources.list
#
# Debian cdrom [Debian GNU/Linux 7 _Wheezy_ - Official amd64 DVD Binary-1] wheezy contrib main
#deb cdrom:[Debian GNU/Linux 7.3.0 _Wheezy_ - Official amd64 DVD Binary-1 20131215-04:56]/ wheezy contrib main
deb http://ftp.ro.debian.org/debian/ wheezy main non-free contrib
deb-src http://ftp.ro.debian.org/debian/ wheezy main non-free contrib
deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib non-free
# wheezy-updates, previously known as 'volatile'
deb http://ftp.ro.debian.org/debian/ wheezy-updates main contrib non-free
deb-src http://ftp.ro.debian.org/debian/ wheezy-updates main contrib non-free
# iceweasel-release
deb http://mozilla.debian.net/ wheezy-backports iceweasel-release
# wheezy-backports
deb http://ftp.ro.debian.org/debian/ wheezy-backports main contrib non-free
deb-src http://ftp.ro.debian.org/debian/ wheezy-backports main contrib non-free