Could you please run `sudo apt update` and see if that resolves the issue? Update needs to be run after changing repositories, otherwise apt won't know about the contents of the new ones.
** Changed in: apt (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1705040 Title: can't get source package Status in apt package in Ubuntu: Incomplete Bug description: $ apt-get --version apt 1.5~beta1 (amd64) Supported modules: *Ver: Standard .deb *Pkg: Debian dpkg interface (Priority 30) Pkg: Debian APT solver interface (Priority -1000) Pkg: Debian APT planner interface (Priority -1000) S.L: 'deb' Debian binary tree S.L: 'deb-src' Debian source tree Idx: Debian Source Index Idx: Debian Package Index Idx: Debian Translation Index Idx: Debian dpkg status file Idx: Debian deb file Idx: Debian dsc file Idx: Debian control file Idx: EDSP scenario file Idx: EIPP scenario file Ubuntu 17.10 $ apt-get source mutterReading package lists... Done E: You must put some 'source' URIs in your sources.list But all deb-src are enabled. $ cat /etc/apt/sources.list #deb cdrom:[Ubuntu 17.10 _Artful Aardvark_ - Alpha amd64 (20170714)]/ artful main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://ru.archive.ubuntu.com/ubuntu/ artful main restricted deb-src http://ru.archive.ubuntu.com/ubuntu/ artful main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://ru.archive.ubuntu.com/ubuntu/ artful-updates main restricted deb-src http://ru.archive.ubuntu.com/ubuntu/ artful-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://ru.archive.ubuntu.com/ubuntu/ artful universe deb-src http://ru.archive.ubuntu.com/ubuntu/ artful universe deb http://ru.archive.ubuntu.com/ubuntu/ artful-updates universe deb-src http://ru.archive.ubuntu.com/ubuntu/ artful-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://ru.archive.ubuntu.com/ubuntu/ artful multiverse deb-src http://ru.archive.ubuntu.com/ubuntu/ artful multiverse deb http://ru.archive.ubuntu.com/ubuntu/ artful-updates multiverse deb-src http://ru.archive.ubuntu.com/ubuntu/ artful-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://ru.archive.ubuntu.com/ubuntu/ artful-backports main restricted universe multiverse deb-src http://ru.archive.ubuntu.com/ubuntu/ artful-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu artful partner # deb-src http://archive.canonical.com/ubuntu artful partner deb http://security.ubuntu.com/ubuntu artful-security main restricted deb-src http://security.ubuntu.com/ubuntu artful-security main restricted deb http://security.ubuntu.com/ubuntu artful-security universe deb-src http://security.ubuntu.com/ubuntu artful-security universe deb http://security.ubuntu.com/ubuntu artful-security multiverse deb-src http://security.ubuntu.com/ubuntu artful-security multiverse To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1705040/+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