Ubuntu 19.04 Error 404 Not Found [IP: 91.189.95.83 80] error on apt update [closed]

I had uninstalled open jdk and trying to install oracle jdk8 but getting following error

oracle@ubuntu:~/Downloads$ sudo apt update
Hit:1 bionic InRelease
Hit:2 bionic-updates InRelease
Hit:3 stable InRelease
Hit:4 eoan InRelease
Ign:5 eoan InRelease
Err:6 eoan Release 404 Not Found [IP: 91.189.95.83 80]
Reading package lists... Done
E: The repository ' eoan Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Please can you help me out from this error.

4 Answers

sudo add-apt-repository --remove ppa:webupd8team/ppa
sudo apt update

Per

In software & updates app--> other softwares. Unchecked eoan

I fixed my problem by this:

1.First, restore the default focal repositories using these commands:

mkdir ~/solution cd ~/solution/
cat << EOF > ~/solution/sources.list deb focal main restricted universe multiverse deb-src focal main restricted universe multiverse
deb focal-updates main restricted universe multiverse deb-src focal-updates main restricted universe multiverse
deb focal-security main restricted universe multiverse deb-src focal-security main restricted universe multiverse
deb focal-backports main restricted universe multiverse deb-src focal-backports main restricted universe multiverse
deb focal partner deb-src focal partner EOF
sudo rm /etc/apt/sources.list sudo cp ~/solution/sources.list /etc/apt/sources.list

2.Remove all the PPAs in your system:

sudo mv /etc/apt/sources.list.d/* ~/solution

3.Update the repositories:

sudo apt update

You can see this solution on this link:

I have replaced source.list with below text, resolved my issue.

# See for how to upgrade to
# newer versions of the distribution.
deb precise main
deb-src precise main
## Major bug fix updates produced after the final release of the
## distribution.
deb precise-updates main
deb-src precise-updates main
## 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 precise universe
deb-src precise universe
deb precise-updates universe
deb-src precise-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 precise multiverse
# deb-src precise multiverse
# deb precise-updates multiverse
# deb-src precise-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 precise-backports main restricted universe multiverse
# deb-src precise-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 precise partner
# deb-src precise partner
deb precise-security main
deb-src precise-security main
deb precise-security universe
deb-src precise-security universe
# deb precise-security multiverse
# deb-src precise-security multiverse

after that run this