Install Issues

All,

Trying to install MariaDB, so run the following:
Quote:

apt-get update && apt-get upgrade && apt-get autoremove

And then get these errors:

Quote:

W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11-icons-hidpi (main/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11-icons-large (main/dep11/icons-128x128.tar) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11-icons-hidpi (main/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11-icons-large (main/dep11/icons-128x128.tar) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 E: The repository 'http://ppa.launchpad.net/jacob/media/ubuntu bionic 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. W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11-icons-hidpi (main/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11-icons-large (main/dep11/icons-128x128.tar) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 E: The repository 'http://ppa.launchpad.net/videolan/stable-daily/ubuntu bionic 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. W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11-icons-hidpi (main/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target DEP-11-icons-large (main/dep11/icons-128x128.tar) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:1 and /etc/apt/sources.list.d/gnome3-team-ubuntu-gnome3-bionic.list:4 W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11-icons-hidpi (main/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target DEP-11-icons-large (main/dep11/icons-128x128.tar) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:1 and /etc/apt/sources.list.d/transmissionbt-ubuntu-ppa-bionic.list:4 W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target DEP-11-icons-hidpi (main/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target DEP-11-icons-large (main/dep11/icons-128x128.tar) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:1 and /etc/apt/sources.list.d/videolan-ubuntu-stable-daily-bionic.list:4 W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11-icons-hidpi (main/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target DEP-11-icons-large (main/dep11/icons-128x128.tar) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4 W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:1 and /etc/apt/sources.list.d/webupd8team-ubuntu-java-bionic.list:4

Since when does anything write duplicates into sources.list?

Also when I run:
Quote:

apt-get install mariadb-server

I then get these errors:
Quote:

Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: mariadb-server : Depends: mariadb-server-10.1 (>= 1:10.1.47-0ubuntu0.18.04.1) but it is not going to be installed E: Unable to correct problems, you have held broken packages.

No matter what HOWTOs and help posts I try/follow on fixing held/broken packages, nothing ever clears them and over 90% of the time, running cmd:
Quote:

dpkg --get-selections | grep hold

Never ever shows any held packages.

So where is there a "REAL" solution to these errors?

Cheers!

TBNK