I'm new to Linux and as you've probably guessed, it is not without challenges :-)
How do I fix this little problem
Code:
Hit:1 http://packages.microsoft.com/repos/vscode stable InRelease
Hit:2 http://dk.archive.ubuntu.com/ubuntu xenial InRelease
Hit:3 http://dk.archive.ubuntu.com/ubuntu xenial-updates InRelease
Hit:4 http://dk.archive.ubuntu.com/ubuntu xenial-backports InRelease
Get:5 http://security.ubuntu.com/ubuntu xenial-security InRelease [107 kB]
Ign:6 http://dl.google.com/linux/chrome/deb stable InRelease
Get:7 http://archive.getdeb.net/ubuntu precise-getdeb InRelease
Err:7 http://archive.getdeb.net/ubuntu precise-getdeb InRelease
Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
Hit:8 http://www.geogebra.net/linux stable InRelease
Hit:9 http://ppa.launchpad.net/elementary-os/stable/ubuntu xenial InRelease
Hit:10 http://packages.elementary.io/appcenter xenial InRelease
Hit:11 http://dl.google.com/linux/chrome/deb stable Release
Hit:12 http://ppa.launchpad.net/linuxuprising/java/ubuntu xenial InRelease
Hit:13 https://deb.nodesource.com/node_10.x xenial InRelease
Hit:14 http://ppa.launchpad.net/elementary-os/os-patches/ubuntu xenial InRelease
Hit:15 http://ppa.launchpad.net/webupd8team/java/ubuntu xenial InRelease
Hit:16 https://download.mono-project.com/repo/debian stable-stretch InRelease
Hit:17 https://packages.microsoft.com/ubuntu/17.10/prod artful InRelease
0% [13 InRelease gpgv 4,611 B]
Fetched 107 kB in 1s (106 kB/s)
Reading package lists... Done
E: Failed to fetch http://archive.getdeb.net/ubuntu/dists/precise-getdeb/InRelease Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
E: Some index files failed to download. They have been ignored, or old ones used instead.
