Failed to Fetch Updates This may have been caused by external, manually added software repositories or a corrupted sources file. Details > Failed to obtain authentication
I do have additional software sources added, a few PPAs and a repository for weechat from the weechat devs. I'm not sure which one is the culprit (if any).
"sudo apt update" works flawlessly, and I am able to install software through the terminal. But I am unable to install anything through AppCenter, either free or paid, it simply starts downloading and then fails.
deb http://packages.elementary.io/appcenter bionic main
deb http://ppa.launchpad.net/elementary-os/stable/ubuntu bionic main deb-src http://ppa.launchpad.net/elementary-os/stable/ubuntu bionic main
I also have a patches.list with the following:
deb http://ppa.launchpad.net/elementary-os/os-patches/ubuntu bionic main deb-src http://ppa.launchpad.net/elementary-os/os-patches/ubuntu bionic main
The other contents of my /etc/apt/sources.list.d/ are a PPA for updated versions of mpv, a PPA for an updated version of GIMP, the elementary tweaks PPA, vscode's repository, and weechat's bionic repository.
I will try removing them one by one to see if they are the culprit but I would appreciate any input someone could give me.