You're a hero - thank you! $ sudo apt-get install libsane1/bionic libsane-common/bionic sane-utils/bionic Reading package lists... Done Building dependency tree Reading state information... Done Selected version '1.0.27-1~experimental3ubuntu2' (Ubuntu:18.04/bionic [amd64]) for 'libsane1' Selected version '1.0.27-1~experimental3ubuntu2' (Ubuntu:18.04/bionic [all]) for 'libsane-common' Selected version '1.0.27-1~experimental3ubuntu2' (Ubuntu:18.04/bionic [amd64]) for 'sane-utils' The following packages were automatically installed and are no longer required: linux-headers-4.15.0-45 linux-headers-4.15.0-45-generic linux-image-4.15.0-45-generic linux-modules-4.15.0-45-generic linux-modules-extra-4.15.0-45-generic Use 'sudo apt autoremove' to remove them. Suggested packages: hplip unpaper The following NEW packages will be installed libsane1 sane-utils The following packages will be DOWNGRADED: libsane-common 0 to upgrade, 2 to newly install, 1 to downgrade, 0 to remove and 0 not to upgrade. Need to get 2,547 kB of archives. After this operation, 7,216 kB of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 http://gb.archive.ubuntu.com/ubuntu bionic/main amd64 libsane-common all 1.0.27-1~experimental3ubuntu2 [274 kB] Get:2 http://gb.archive.ubuntu.com/ubuntu bionic/main amd64 libsane1 amd64 1.0.27-1~experimental3ubuntu2 [2,089 kB] Get:3 http://gb.archive.ubuntu.com/ubuntu bionic/main amd64 sane-utils amd64 1.0.27-1~experimental3ubuntu2 [185 kB] Fetched 2,547 kB in 1s (2,937 kB/s) Preconfiguring packages ... dpkg: warning: downgrading libsane-common from 1.0.27+git20180317-xenial0 to 1.0.27-1~experimental3ubuntu2 (Reading database ... 242195 files and directories currently installed.) Preparing to unpack .../libsane-common_1.0.27-1~experimental3ubuntu2_all.deb ... Unpacking libsane-common (1.0.27-1~experimental3ubuntu2) over (1.0.27+git20180317-xenial0) ... Selecting previously unselected package libsane1:amd64. Preparing to unpack .../libsane1_1.0.27-1~experimental3ubuntu2_amd64.deb ... Unpacking libsane1:amd64 (1.0.27-1~experimental3ubuntu2) ... Selecting previously unselected package sane-utils. Preparing to unpack .../sane-utils_1.0.27-1~experimental3ubuntu2_amd64.deb ... Unpacking sane-utils (1.0.27-1~experimental3ubuntu2) ... Processing triggers for ureadahead (0.100.0-20) ... ureadahead will be reprofiled on next reboot Setting up libsane-common (1.0.27-1~experimental3ubuntu2) ... Processing triggers for libc-bin (2.27-3ubuntu1) ... Processing triggers for udev (237-3ubuntu10.15) ... Processing triggers for systemd (237-3ubuntu10.15) ... Processing triggers for man-db (2.8.3-2ubuntu0.1) ... Setting up libsane1:amd64 (1.0.27-1~experimental3ubuntu2) ... Setting up sane-utils (1.0.27-1~experimental3ubuntu2) ... Adding user saned to group scanner Processing triggers for libc-bin (2.27-3ubuntu1) ... Processing triggers for systemd (237-3ubuntu10.15) ... Processing triggers for ureadahead (0.100.0-20) ... $
Then: $ sudo apt install gnome-control-center Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: colord libcolord-gtk1 libnss-myhostname Suggested packages: colord-sensor-argyll realmd rygel | rygel-tracker The following NEW packages will be installed colord gnome-control-center libcolord-gtk1 libnss-myhostname 0 to upgrade, 4 to newly install, 0 to remove and 0 not to upgrade. Need to get 1,874 kB of archives. After this operation, 6,031 kB of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 http://gb.archive.ubuntu.com/ubuntu bionic/main amd64 colord amd64 1.3.3-2build1 [196 kB] Get:2 http://gb.archive.ubuntu.com/ubuntu bionic/main amd64 libcolord-gtk1 amd64 0.1.26-2 [17.1 kB] Get:3 http://gb.archive.ubuntu.com/ubuntu bionic-updates/main amd64 gnome-control-center amd64 1:3.28.2-0ubuntu0.18.04.2 [1,627 kB] Get:4 http://gb.archive.ubuntu.com/ubuntu bionic-updates/main amd64 libnss-myhostname amd64 237-3ubuntu10.15 [34.4 kB] Fetched 1,874 kB in 1s (2,827 kB/s) Selecting previously unselected package colord. (Reading database ... 206764 files and directories currently installed.) Preparing to unpack .../colord_1.3.3-2build1_amd64.deb ... Unpacking colord (1.3.3-2build1) ... Selecting previously unselected package libcolord-gtk1:amd64. Preparing to unpack .../libcolord-gtk1_0.1.26-2_amd64.deb ... Unpacking libcolord-gtk1:amd64 (0.1.26-2) ... Selecting previously unselected package gnome-control-center. Preparing to unpack .../gnome-control-center_1%3a3.28.2-0ubuntu0.18.04.2_amd64.deb ... Unpacking gnome-control-center (1:3.28.2-0ubuntu0.18.04.2) ... Selecting previously unselected package libnss-myhostname:amd64. Preparing to unpack .../libnss-myhostname_237-3ubuntu10.15_amd64.deb ... Unpacking libnss-myhostname:amd64 (237-3ubuntu10.15) ... Setting up libcolord-gtk1:amd64 (0.1.26-2) ... Processing triggers for mime-support (3.60ubuntu1) ... Setting up libnss-myhostname:amd64 (237-3ubuntu10.15) ... Processing triggers for desktop-file-utils (0.23-1ubuntu3.18.04.2) ... Processing triggers for libglib2.0-0:amd64 (2.56.3-0ubuntu0.18.04.1) ... Processing triggers for bamfdaemon (0.5.3+18.04.20180207.2-0ubuntu1) ... Rebuilding /usr/share/applications/bamf-2.index... Setting up colord (1.3.3-2build1) ... colord.service is a disabled or a static unit, not starting it. Processing triggers for libc-bin (2.27-3ubuntu1) ... Processing triggers for man-db (2.8.3-2ubuntu0.1) ... Processing triggers for gnome-menus (3.13.3-11ubuntu1.1) ... Processing triggers for dbus (1.12.2-1ubuntu1) ... Setting up gnome-control-center (1:3.28.2-0ubuntu0.18.04.2) ... At long last I have my Settings back (and printer!). Than you so much:). -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1821809 Title: gnome-control-center won't install: Depends: colord (>= 0.1.30) Status in gnome-control-center package in Ubuntu: Invalid Bug description: This bug looks similar to https://bugs.launchpad.net/ubuntu/+source /gnome-control-center/+bug/1762256. I noticed Settings has gone missing from my ubuntu 18.04. When I click on the spanner icon under the power icon in the top right nothing appears to happen. Attempting to install it fails with: $ sudo apt install gnome-control-center [sudo] password for lucas: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies. gnome-control-center : Depends: colord (>= 0.1.30) E: Unable to correct problems, you have held broken packages. This may have come about as a side-effect of trying to install simple- scan. I raised a question about that at https://askubuntu.com/q/1108407/103266 but it never got fixed. I couldn't resolve the error "Unable to correct problems, you have held broken packages". Any suggestions welcome, please. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-control-center (not installed) ProcVersionSignature: Ubuntu 4.15.0-46.49-generic 4.15.18 Uname: Linux 4.15.0-46-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue Mar 26 21:15:46 2019 InstallationDate: Installed on 2017-09-03 (569 days ago) InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801) SourcePackage: gnome-control-center UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1821809/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp