I tried updating, purging and reinstalling all packages across snap, flatpak and gnome with no luck. I keep getting this error:
$ software-sources /usr/lib/python3/dist-packages/requests/__init__.py:89: RequestsDependencyWarning: urllib3 (2.0.4) or chardet (3.0.4) doesn't match a supported version! warnings.warn("urllib3 ({}) or chardet ({}) doesn't match a supported " OS codename: 'focal'. This codename isn't currently supported. Please check your OS release information with "cat /etc/os-release" (identified as VERSION_CODENAME).
Let's check your /etc/apt/sources.list and /etc/apt/sources.list.d directory.
Do you have any non-Focal repositories added? (It would also show in running sudo apt update)
deb cdrom:[Zorin-OS 16.1 Pro 64bit]/ focal main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://archive.ubuntu.com/ubuntu focal main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://at.archive.ubuntu.com/ubuntu/ focal-updates main restricted
# deb-src http://at.archive.ubuntu.com/ubuntu/ focal-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://archive.ubuntu.com/ubuntu focal universe
# deb-src http://at.archive.ubuntu.com/ubuntu/ focal universe
deb http://at.archive.ubuntu.com/ubuntu/ focal-updates universe
# deb-src http://at.archive.ubuntu.com/ubuntu/ focal-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://archive.ubuntu.com/ubuntu focal multiverse
# deb-src http://at.archive.ubuntu.com/ubuntu/ focal multiverse
deb http://at.archive.ubuntu.com/ubuntu/ focal-updates multiverse
# deb-src http://at.archive.ubuntu.com/ubuntu/ focal-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 http://at.archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse
# deb-src http://at.archive.ubuntu.com/ubuntu/ focal-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 focal partner
# deb-src http://archive.canonical.com/ubuntu focal partner
deb http://security.ubuntu.com/ubuntu focal-security restricted main
# deb-src http://security.ubuntu.com/ubuntu focal-security main restricted
deb http://security.ubuntu.com/ubuntu focal-security universe
# deb-src http://security.ubuntu.com/ubuntu focal-security universe
deb http://security.ubuntu.com/ubuntu focal-security multiverse
# deb-src http://security.ubuntu.com/ubuntu focal-security multiverse
# This system was installed using small removable media
# (e.g. netinst, live or single CD). The matching "deb cdrom"
# entries were disabled at the end of the installation process.
# For information about how to configure apt package sources,
# see the sources.list(5) manual.
You should remove the Mint Daily Builds repository. It is good for a one time installation, but if you run upgrades with that repo added, it can conflict with Zorin System apps.
You should also not have the CDRom: Zorin OS disk enabled as a source unless using it for recovery.
I just did a net search for the Ubuntu Software Sources app and I cannot find anything that pertains to new information. Rather, the software-sources app was replaced by Software & Updates (software-properties-gtk).
Did you install an app named Software Sources?
Or are you referring to the Software & Updates app?
If you are referring to Software & Updates, run in terminal
~$ software-properties-gtk
/usr/lib/python3/dist-packages/requests/__init__.py:89: RequestsDependencyWarning: urllib3 (2.0.4) or chardet (3.0.4) doesn't match a supported version!
warnings.warn("urllib3 ({}) or chardet ({}) doesn't match a supported "
OS codename: 'focal'.
This codename isn't currently supported.
Please check your OS release information with "cat /etc/os-release" (identified as VERSION_CODENAME).
