I cannot even get off the ground here to install duplicati. Everything is up to date on my ubuntu 20.04 server and I’m not sure where to go from here. BTW I deleted the H infront of HTTPS so I could post this.
root@sr1:~# sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
Executing: /tmp/apt-key-gpghome.fcABPCRMo1/gpg.1.sh --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
gpg: key A6A19B38D3D831EF: “Xamarin Public Jenkins (auto-signing) releng@xamarin.com” not changed
gpg: Total number processed: 1
gpg: unchanged: 1
root@sr1:~# echo “deb ttps://download.mono-project.com/repo/ubuntu stable-focal main” | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
deb ttps://download.mono-project.com/repo/ubuntu stable-focal main
root@sr1:~# sudo apt update
Hit:1 ttp://ppa.launchpad.net/ondrej/apache2/ubuntu focal InRelease
Hit:2 ttp://ppa.launchpad.net/ondrej/php/ubuntu focal InRelease
Hit:3 ttps://apt.hestiacp.com focal InRelease
Hit:4 ttps://mirror.mva-n.net/mariadb/repo/10.5/ubuntu focal InRelease
Hit:5 ttps://nginx.org/packages/mainline/ubuntu focal InRelease
Hit:6 ttps://download.mono-project.com/repo/ubuntu stable-focal InRelease
Reading package lists… Done
Building dependency tree
Reading state information… Done
All packages are up to date.
root@sr1:~# sudo apt install mono-devel gtk-sharp2 libappindicator0.1-cil libmono-2.0-1
Reading package lists… Done
Building dependency tree
Reading state information… Done
Package libappindicator0.1-cil is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package ‘libappindicator0.1-cil’ has no installation candidate