update manager -'E:Type 'wget' is not known on line 45 in source list /etc/apt/sources.list, E:The list of sources could not be read.'

Open a terminal from the menu Application-> Accessories-> Terminal and post the output of the following command

cat /etc/apt/sources.list

We can then let you know what needs to edited to restore your update manager.

You have added some incorrect lines to your file /etc/apt/sources.list, which probably should have been executed in a terminal instead.
To resolve this you need to edit the file /etc/apt/sources.list and remove the referred line(s) that should not be there.
As a guide, sources.list should only contain lines that start "deb", "deb-src", "cdrom" or a "#" symbol, anything else is wrong and should not be there. Please refer to the error message, which should contain a line number.
To edit the sources.list file, press ALT+F2 at the Ubuntu desktop and then type the following command in the box, depending on your Ubuntu flavour:
For Ubuntu:
gksudo gedit /etc/apt/sources.list
For Kubuntu:
kdesudo kwrite /etc/apt/sources.list
Exactly as you see it there, then press enter/return. Enter your password when prompted and edit the file in the editor as advised above. You should then save and quit the editor.
The program which reads /etc/apt/sources.list should work again.

For ubuntu 8.04 please paste the below:

# deb cdrom:[Ubuntu 8.04 _Hardy Heron_ - Release i386 (20080423)]/ hardy main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb http://in.archive.ubuntu.com/ubuntu/ hardy main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ hardy main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://in.archive.ubuntu.com/ubuntu/ hardy-updates main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ hardy-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
deb http://in.archive.ubuntu.com/ubuntu/ hardy universe
deb-src http://in.archive.ubuntu.com/ubuntu/ hardy universe
deb http://in.archive.ubuntu.com/ubuntu/ hardy-updates universe
deb-src http://in.archive.ubuntu.com/ubuntu/ hardy-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://in.archive.ubuntu.com/ubuntu/ hardy multiverse
deb-src http://in.archive.ubuntu.com/ubuntu/ hardy multiverse
deb http://in.archive.ubuntu.com/ubuntu/ hardy-updates multiverse
deb-src http://in.archive.ubuntu.com/ubuntu/ hardy-updates multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
# deb http://in.archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse
# deb-src http://in.archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository. This software is not part of Ubuntu, but is
## offered by Canonical and the respective vendors as a service to Ubuntu
## users.
deb http://archive.canonical.com/ubuntu hardy partner
deb-src http://archive.canonical.com/ubuntu hardy partner

deb http://security.ubuntu.com/ubuntu hardy-security main restricted
deb-src http://security.ubuntu.com/ubuntu hardy-security main restricted
deb http://security.ubuntu.com/ubuntu hardy-security universe
deb-src http://security.ubuntu.com/ubuntu hardy-security universe
deb http://security.ubuntu.com/ubuntu hardy-security multiverse
deb http://in.archive.ubuntu.com/ubuntu/ hardy-proposed restricted main multiverse universe
deb-src http://security.ubuntu.com/ubuntu hardy-security multiverse

Save the source list

Run the update manager

gksu "update-manager -c"

Regards

Thanks for the help. I just reinstalled it instead. I was trying to install programs that would allow me to watch dvd movies. I just typed int eh wrong line code.

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Thank you. I just reinstalled it instead. I was trying to install programs to play dvd movies and i typed in the wrong line code

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Hello

Please refer:

https://help.ubuntu.com/community/RestrictedFormats/PlayingDVDs

Regards