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I'm getting this error when I try to install mysql on Ubuntu

sudo apt install mysql-client-core-5.7 



Reading package lists... Done Building dependency tree        Reading state information... Done The following packages were automatically installed and are no longer required:   libnvidia-common-390 libwayland-client0:i386 libwayland-server0:i386 Use 'sudo apt autoremove' to remove them. The following NEW packages will be installed:   mysql-client-core-5.7 0 upgraded, 1 newly installed, 0 to remove and 4 not upgraded. Need to get 6,985 kB of archives. After this operation, 31.5 MB of additional disk space will be used. Ign:1 http://security.ubuntu.com/ubuntu bionic-security/main amd64 mysql-client-core-5.7 amd64

5.7.23-0ubuntu0.18.04.1 Err:1 http://us.archive.ubuntu.com/ubuntu bionic-security/main amd64 mysql-client-core-5.7 amd64

5.7.23-0ubuntu0.18.04.1   404  Not Found [IP: 91.189.88.161 80] E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/m/mysql-5.7/mysql-client-core-5.7_5.7.23-0ubuntu0.18.04.1_amd64.deb 404  Not Found [IP: 91.189.88.161 80] E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

I have tried

sudo apt update 

followed by

sudo apt upgrade

My sources.list file looks like this

# deb cdrom:[Ubuntu 18.04.1 LTS _Bionic Beaver_ - Release amd64 (20180725)]/ bionic main restricted



# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to

# newer versions of the distribution.

deb http://us.archive.ubuntu.com/ubuntu/ bionic main restricted

# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic main restricted



## Major bug fix updates produced after the final release of the

## distribution.

# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-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://us.archive.ubuntu.com/ubuntu/ bionic universe

# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic universe

# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-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://us.archive.ubuntu.com/ubuntu/ bionic multiverse

# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic multiverse

# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-updates multiverse



## 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-src http://us.archive.ubuntu.com/ubuntu/ bionic-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 bionic partner

# deb-src http://archive.canonical.com/ubuntu bionic partner



deb http://security.ubuntu.com/ubuntu bionic-security main restricted

# deb-src http://security.ubuntu.com/ubuntu bionic-security main restricted

deb http://security.ubuntu.com/ubuntu bionic-security universe

# deb-src http://security.ubuntu.com/ubuntu bionic-security universe

deb http://security.ubuntu.com/ubuntu bionic-security multiverse

# deb-src http://security.ubuntu.com/ubuntu bionic-security multiverse

deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted universe multiverse

Thanks in advance for the help.

I just tried autoremove followed by update and upgrade and this is what I got when I ran again with --fix-missing

sudo apt-get install mysql-client-core-5.7 --fix-missing

Reading package lists... Done

Building dependency tree       

Reading state information... Done

The following additional packages will be installed:

  libaio1

The following NEW packages will be installed:

  libaio1 mysql-client-core-5.7

0 upgraded, 2 newly installed, 0 to remove and 5 not upgraded.

Need to get 6,985 kB/6,992 kB of archives.

After this operation, 31.5 MB of additional disk space will be used.

Do you want to continue? [Y/n] y

Ign:1 http://security.ubuntu.com/ubuntu bionic-security/main amd64 mysql-client-core-5.7 amd64 5.7.23-0ubuntu0.18.04.1

Err:1 http://us.archive.ubuntu.com/ubuntu bionic-security/main amd64 mysql-client-core-5.7 amd64 5.7.23-0ubuntu0.18.04.1

  404  Not Found [IP: 91.189.88.152 80]

Selecting previously unselected package libaio1:amd64.

(Reading database ... 212399 files and directories currently installed.)

Preparing to unpack .../libaio1_0.3.110-5_amd64.deb ...

Unpacking libaio1:amd64 (0.3.110-5) ...

Processing triggers for libc-bin (2.27-3ubuntu1) ...

Setting up libaio1:amd64 (0.3.110-5) ...

Processing triggers for libc-bin (2.27-3ubuntu1) ...

E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/m/mysql-5.7/mysql-client-core-5.7_5.7.23-0ubuntu0.18.04.1_amd64.deb  404  Not Found [IP: 91.189.88.152 80]

Try this sudo apt install mysql-client

If I am correct this will also install a few dependencies.
With the mysql-client-core-5.7being one of them.

I hope this helps you with your problem.