Após o comando sudo -i gedit / var / lib / dkpg / status. O que devo fazer com este arquivo para corrigir dependências?

Question

Quando estou tentando instalar o Synaptic e muitos outros aplicativos, existe Dependências. Eu fiz

sudo apt-get update
sudo apt-get install -f
sudo dpkg --configure -a

mas tudo isso não está funcionando.

O que devo fazer? Eu só quero instalar o synaptic.

apt-cache policy synaptic libept1.4.12 libgtk2-perl rarian-compat 
synaptic: 
  Installed: (none) 
  Candidate: 0.81.1ubuntu1 
  Version table: 
 *** 0.81.1ubuntu1 0 
          500 in.archive.ubuntu.com/ubuntu trusty-updates/universe amd64 
Packages 
libept1.4.12: 
  Installed: (none) 
  Candidate: (none) 
  Version table: 
libgtk2-perl: 
  Installed: (none) 
  Candidate: (none) 
  Version table: 
rarian-compat: 
  Installed: (none) 
  Candidate: (none) 
  Version table:

sudo apt-get install --simulate libept1.4.12 
[sudo] password for mohammad786: 
Reading package lists... Done 
Building dependency tree  
Reading state information... Done 
Package libept1.4.12 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 'libept1.4.12' has no installation candidate