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My new Ubuntu Dell laptop version 12.04 is not playing videos.

I get the error message,

mpeg-4 aac codec not installed

I can't install the ubuntu-restricted-extras package

Here is the error message:

-Vostro-3546:~# sudo apt-get install ubuntu-restricted-extras
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package ubuntu-restricted-extras

I get the same error when I try to install any package.

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1 Answer 1

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  1. Activate repositories from Software & Updates
  2. Before any installation, run sudo apt-get update.

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