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I want to install ns2 on my Ubuntu 12.04. As usual am trying to install some essential software before installing it. I tried to install:

sudo apt-get install perl xorg-dev g++ xgraph libxt-dev libx11-dev libxmu-dev

And I get this message:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package xgraph 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 'xgraph' has no installation candidate

What should I do?

I ve searched everywhere online for a solution but got none.

How can I solve this?

Elder Geek
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Lucatoni
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1 Answers1

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The package xgraph is available on Universe repositories for 12.04

The main component contains applications that are free software, can be freely redistributed and are fully supported by the Ubuntu team. & The universe component is a snapshot of the free, open-source, and Linux world.

  1. First enable repository,

    sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc) main universe"

  2. Update to aware apt for your repositories changes

    sudo apt-get update

  3. Then install package by sudo apt-get install xgraph

Pandya
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