Hi All,
Any clue, i am trying to Install PI 3.5 on Ubuntu 20, not sure why getting below error. have full internet access on system.
Get:16 http://id.archive.ubuntu.com/ubuntu focal-updates/multiverse amd64 DEP-11 Metadata [2.468 B]
Get:17 http://id.archive.ubuntu.com/ubuntu focal-backports/universe amd64 DEP-11 Metadata [1.768 B]
Ign:18 http://lancelot.netknights.it/community/bionic/stable focal InRelease
Hit:19 http://lancelot.netknights.it/community/focal/stable focal InRelease
Err:20 http://lancelot.netknights.it/community/xenial/stable focal Release
404 Not Found [IP: 46.4.114.140 80]
Err:21 http://lancelot.netknights.it/community/bionic/stable focal Release
404 Not Found [IP: 46.4.114.140 80]
Reading package lists… Done
E: The repository ‘http://lancelot.netknights.it/community/xenial/stable focal R elease’ does not have a Release file.
N: Updating from such a repository can’t be done securely, and is therefore disa bled by default.
N: See apt-secure(8) manpage for repository creation and user configuration deta ils.
E: The repository ‘http://lancelot.netknights.it/community/bionic/stable focal R elease’ does not have a Release file.
N: Updating from such a repository can’t be done securely, and is therefore disa bled by default.
N: See apt-secure(8) manpage for repository creation and user configuration deta ils.