嘗試重新安裝 gnome 控制中心並繼續遇到以下問題：
Reading package lists... Done
Building dependency tree... Done
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: libgdk-pixbuf2.0-0 (>= 2.25.2) but it is not going to be installed
Depends: gnome-control-center-data (< 1:3.37) but 1:40.0-1ubuntu5 is to be installed
Recommends: gnome-online-accounts (>= 3.25.3) but it is not going to be installed
Recommends: network-manager-gnome (>= 0.9.8) but it is not going to be installed
Recommends: gnome-control-center-faces but it is not going to be installed
Recommends: rygel but it is not going to be installed or
rygel-tracker but it is not going to be installed
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target DEP-11-icons-hidpi (main/dep11/[email protected]) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:16
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
W: Target DEP-11-icons-hidpi (main/dep11/[email protected]) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list:15 and /etc/apt/sources.list:17
E: Unable to correct problems, you have held broken packages.