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Get Error When Updating Software On Ubuntu 18.04.4 LTS

I think I am trying to upgrade to MariaDB version 10.4 but I am having problems. Here is the command line input I run and the response: 

larry@larry-MS-7693:~$ sudo apt-get install software-properties-common
Reading package lists... Done
Building dependency tree       
Reading state information... Done
software-properties-common is already the newest version (0.96.24.32.12).
The following packages were automatically installed and are no longer required:
  libclang-common-7-dev libclang-common-8-dev libllvm7 libllvm8
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 8 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] Y
Setting up mysql-server-5.7 (5.7.30-0ubuntu0.18.04.1) ...
/var/lib/dpkg/info/mysql-server-5.7.postinst: line 191: /usr/share/mysql-common/configure-symlinks: No such file or directory
dpkg: error processing package mysql-server-5.7 (--configure):
 installed mysql-server-5.7 package post-installation script subprocess returned error exit status 127
Errors were encountered while processing:
 mysql-server-5.7
E: Sub-process /usr/bin/dpkg returned an error code (1)

What do I need to do? Please help. --Regards, Larry

Answer Answered by Shawn Logan in this comment.

There probably an issue with an old install of a related product. Backup any databases you have. Try purging all MySQL and MariaDB related packages, removing all third party apt repositories from /etc/apt/sources.list and /etc/apt/sources.list.d and then reinstalling MySQL from the official Ubuntu repositories again.

$ sudo apt-get remove --purge mysql-server mysql-client mysql-common -y $ sudo apt-get remove --purge mariadb-server $ sudo apt-get autoremove -y $ sudo apt-get autoclean

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