Доброго дня! Завис на ошибке и не знаю куда копать дальше. Надеюсь на ваши советы!

Пытаюсь поставить пакет, выходит ошибка:

apt-get install exim4-daemon-heavy
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:
exim4-daemon-heavy : Depends: libperl5.10 (>= 5.10.1) but it is not going to be installed

Устанавливаю libperl5.10:

apt-get install libperl5.10
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:
libperl5.10 : Depends: perl-base (= 5.10.1-17squeeze6) but 5.20.2-3+deb8u6 is to be installed
E: Broken packages

Куда копать дальше? Заранее спасибо!