synaptic error on Ubuntu 10.10

**bijoupele** · April 19th, 2011

Help. I get this error when I open up Synaptic Package Manager.

E: Type 'n' is not known on line 1 in source list /etc/apt/sources.list.d/ubuntu-desktop-gnome3-builds-maverick.list
E: The list of sources could not be read.
Go to the repository dialog to correct the problem.
E: _cache->open() failed, please report.

This is what I get when I pull up the sources.list via Terminal:

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb http://archive.ubuntu.com/ubuntu maverick main restricted

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

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu maverick universe
deb http://archive.ubuntu.com/ubuntu maverick-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://archive.ubuntu.com/ubuntu maverick multiverse
deb http://archive.ubuntu.com/ubuntu maverick-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://us.archive.ubuntu.com/ubuntu/ maverick-backports main restricted universe multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ maverick-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 maverick partner
deb-src http://archive.canonical.com/ubuntu maverick partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu maverick main
deb-src http://extras.ubuntu.com/ubuntu maverick main

deb http://archive.ubuntu.com/ubuntu maverick-security main restricted
deb http://archive.ubuntu.com/ubuntu maverick-security universe
deb http://archive.ubuntu.com/ubuntu maverick-security multiverse
deb http://archive.ubuntu.com/ubuntu maverick-proposed restricted main multiverse universe

Any help is greatly appreciated.

Thank you.