sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup 
sudo gedit /etc/apt/sources.list

Find this section

deb cdrom:[Ubuntu 5.04 _Breezy Badger_ - Release i386 (20050407)]/ breezy main restricted


## Uncomment the following two lines to fetch updated software from the network
# deb https://us.archive.ubuntu.com/ubuntu breezy main restricted
# deb-src https://us.archive.ubuntu.com/ubuntu breezy main restricted

## Uncomment the following two lines to fetch major bug fix updates produced
## after the final release of the distribution.
# deb https://us.archive.ubuntu.com/ubuntu breezy-updates main restricted
# deb-src https://us.archive.ubuntu.com/ubuntu breezy-updates main restricted

## Uncomment the following two lines to add software from the 'universe'
## repository.
## 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 https://us.archive.ubuntu.com/ubuntu breezy universe
# deb-src https://us.archive.ubuntu.com/ubuntu breezy universe

# deb https://security.ubuntu.com/ubuntu breezy-security main restricted
# deb-src https://security.ubuntu.com/ubuntu breezy-security main restricted

# deb https://security.ubuntu.com/ubuntu breezy-security universe
# deb-src https://security.ubuntu.com/ubuntu breezy-security universe
					

Replace with the following lines

#deb cdrom:[Ubuntu 5.04 _Breezy Badger_ - Release i386 (20050407)]/ breezy main restricted


## Uncomment the following two lines to fetch updated software from the network
deb https://us.archive.ubuntu.com/ubuntu breezy main restricted
deb-src https://us.archive.ubuntu.com/ubuntu breezy main restricted

## Uncomment the following two lines to fetch major bug fix updates produced
## after the final release of the distribution.
deb https://us.archive.ubuntu.com/ubuntu breezy-updates main restricted
deb-src https://us.archive.ubuntu.com/ubuntu breezy-updates main restricted

## Uncomment the following two lines to add software from the 'universe'
## repository.
## 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 https://us.archive.ubuntu.com/ubuntu breezy universe
deb-src https://us.archive.ubuntu.com/ubuntu breezy universe

deb https://security.ubuntu.com/ubuntu breezy-security main restricted
deb-src https://security.ubuntu.com/ubuntu breezy-security main restricted

deb https://security.ubuntu.com/ubuntu breezy-security universe
deb-src https://security.ubuntu.com/ubuntu breezy-security universe

deb https://archive.ubuntu.com/ubuntu breezy multiverse
deb-src https://archive.ubuntu.com/ubuntu breezy multiverse
						

Save the edited file

sudo apt-get update
sudo apt-get dist-upgrade

Save and close all opened applications, Reboot computer.