It seems you accidentally typed a command into the file rather than the shell some time ago, I suggest fixing it
** Changed in: software-properties (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to software-properties in Ubuntu. https://bugs.launchpad.net/bugs/2106048 Title: E: Typ »sudo« in Zeile 3 der Quellliste /etc/apt/sources.list.d/signal-xenial.list ist unbekannt. Status in software-properties package in Ubuntu: Invalid Bug description: I try to upgrade to 24.04 and get "E: Typ »sudo« in Zeile 3 der Quellliste /etc/apt/sources.list.d/signal-xenial.list ist unbekannt." And what ever I try to do in terminal I get this message To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/2106048/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp