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When I'm trying to install synaptic and many other applications Dependencies exists. I have done

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

but these all are not working.

What should I do? I just want to install 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
karel
  • 114,770
daud_config
  • 11
  • 2
    Please add more details on the error messages you get, and also what the reason was for this. You may find these posts helpful: http://askubuntu.com/questions/140246/how-do-i-resolve-unmet-dependencies-after-adding-a-ppa and http://askubuntu.com/questions/223237/unable-to-correct-problems-you-have-held-broken-packages – Takkat Dec 12 '16 at 08:51
  • 2
    Could you please add a little more detail? What exactly did you do, what did you want to achieve and what happened instead? Did you encounter any warning or error messages? Please reproduce them in their entirety in your question. You can select, copy and paste terminal content and most dialogue messages in Ubuntu. (see How do I ask a good question?) – David Foerster Dec 12 '16 at 09:28
  • Could you please post text files, dialogue messages, and program output listings as text, not as images? To achieve the latter two you can either 1) select, copy & paste the dialogue text or terminal content or 2) save the program output to a file and use that. Longer listings (>100 lines) should be uploaded to a pastie service and linked to in the question. Thanks. – David Foerster Dec 12 '16 at 14:48
  • What's the output of apt-cache policy synaptic libept1.4.12 libgtk2-perl rarian-compat and apt-get install --simulate libept1.4.12? – David Foerster Dec 12 '16 at 14:50
  • mohammad786@786:~$ 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 http://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:

     – daud_config Dec 12 '16 at 21:10
  • mohammad786@786:~$ 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

     – daud_config Dec 12 '16 at 21:10
  • @daud_config, [edit] the question and the output of commands there. It is hard to read from comments , and important info should be added the question. – user.dz Dec 13 '16 at 11:38

0 Answers0