I am attempting to install Cura on linux mint 19.1 but I am running into issues. I had it working on 18, but since I did a clean install of 19.1 I need to re-install Cura.
$ cat /etc/apt/sources.list
#deb cdrom:[Linux Mint 19.1 _Tessa_ - Release amd64 20181217]/ bionic contrib main non-free
deb http://download.alephobjects.com/ao/aodeb bionic main
(note that I also tried substituting ‘tessa’ for bionic in the sources.list file without success)
I get some suspicious messages when I update:
$ sudo apt-get update
Hit:1 http://mirrors.sonic.net/ubuntu bionic InRelease
Hit:2 http://mirrors.sonic.net/ubuntu bionic-updates InRelease
Hit:3 http://mirrors.sonic.net/ubuntu bionic-backports InRelease
Ign:4 http://download.alephobjects.com/ao/aodeb bionic InRelease
Err:6 http://download.alephobjects.com/ao/aodeb bionic Release
404 Not Found [IP: 70.39.84.33 80]
Hit:7 https://repo.skype.com/deb stable InRelease
Hit:8 http://archive.canonical.com/ubuntu bionic InRelease
Ign:5 http://mirrors.edge.kernel.org/linuxmint-packages tessa InRelease
Get:9 http://security.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB]
Hit:10 http://ppa.launchpad.net/freecad-maintainers/freecad-stable/ubuntu bionic InRelease
Hit:11 http://mirrors.edge.kernel.org/linuxmint-packages tessa Release
Hit:12 http://ppa.launchpad.net/kdenlive/kdenlive-stable/ubuntu bionic InRelease
Hit:14 http://ppa.launchpad.net/openscad/releases/ubuntu bionic InRelease
Reading package lists... Done
E: The repository 'http://download.alephobjects.com/ao/aodeb 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.
and an install attempt fails:
$ cat /etc/apt/sources.list
#deb cdrom:[Linux Mint 19.1 _Tessa_ - Release amd64 20181217]/ bionic contrib main non-free
deb http://download.alephobjects.com/ao/aodeb bionic main
What am I doing wrong, and how do I fix this?