x-window-system-dev e:package not found - help pls

[mesh]

Trying to install mplayer using this guide http://ubuntuforums.org/showthread.php?t=31061


I got to the part where im supose to install x-window-system-dev, but the package wasnt found. Below is my sources.list file. Anyone have any idea why i cant find it. I tried seraching and listed all my installed packages and its not installed and i cannot find it. I could only find x-window-system-core, but thats already installed.


## Add comments (##) in front of any line to remove it from being checked.
## Use the following sources.list at your own risk.

deb http://archive.ubuntu.com/ubuntu dapper main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu dapper main restricted universe multiverse

## MAJOR BUG FIX UPDATES produced after the final release
deb http://archive.ubuntu.com/ubuntu dapper-updates main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu dapper-updates main restricted universe multiverse

## UBUNTU SECURITY UPDATES
deb http://security.ubuntu.com/ubuntu dapper-security main restricted universe multiverse
deb-src http://security.ubuntu.com/ubuntu dapper-security main restricted universe multiverse

## BACKPORTS REPOSITORY (Unsupported. May contain illegal packages. Use at own risk.)
deb http://archive.ubuntu.com/ubuntu dapper-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu dapper-backports main restricted universe multiverse

## PLF REPOSITORY (Unsupported. May contain illegal packages. Use at own risk.)
deb http://packages.freecontrib.org/plf dapper free non-free
deb-src http://packages.freecontrib.org/plf dapper free non-free

## CANONICAL COMMERCIAL REPOSITORY (Hosted on Canonical servers, not Ubuntu
## servers. RealPlayer10, Opera and more to come.)
deb http://archive.canonical.com/ubuntu dapper-commercial main

[amohanty]

Just a thought - but why dont you try to install mplayer from the repos?

Any specific reason why you want to install from source??

AM

[mesh]

Because im a noob :D. Ill be sure and try that next. Thanks for taking the time. Peace


UPDATE: that was easy. :D.Thx again.