Kdenlive usupported Files Problem libx264 mp3lame

What?

Alright, I just finished building my video editing PC, and before I downloaded the mac OS on it I downloaded Ubuntu. After I downloaded Ubuntu I downloaded kdenlive.... I ran into the same problem of unsupported file types for rendering. I had forgotten what I did to fix in the past, so I had to go back and re-research it. So now for your benefit I am going to give instructions for how to fix this problem.

How to Fix it?

1. Install kdenlive

2. Delete the the kdenliverc file .kde<share<config<kdenliverc

3. Open your terminal

4. Paste the following commands one at a time (Note: The first command will ask for your password, but after that it's just copy. enter.)

5. sudo -E wget --output-document=/etc/apt/sources.list.d/medibuntu.list http://www.medibuntu.org/sources.list.d/$(lsb_release -cs).list

6. sudo apt-get --quiet update 

7. sudo apt-get --yes --quiet --allow-unauthenticated install medibuntu-keyring

8.  sudo apt-get --quiet update

9. Close terminal

10. Open Ubuntu software center

11. search "codec" without the quotes

12. install the first thing that comes up (Note: it should be Ubuntu extras)

http://www.kdenlive.org/forum/unsupported-codecs-highly-frustrated-please-help