Conflict occured after trying to re-install Teamviewer 11. Discovered possible solution here: https://askubuntu.com/questions/764228/teamviewer-11-wont-run-on-ubuntu-16-04-64-bit Will follow advice and see how that goes.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libpng in Ubuntu. https://bugs.launchpad.net/bugs/1649355 Title: package libpng12-0 1.2.51-0ubuntu3 failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libpng12-0/ANNOUNCE', which is different from other instances of package libpng12-0:amd64 Status in libpng package in Ubuntu: New Bug description: E: /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1_amd64.deb: trying to overwrite shared '/usr/share/doc/libpng12-0/ANNOUNCE', which is different from other instances of package libpng12-0:amd64 ProblemType: Package DistroRelease: Ubuntu 16.04 Package: libpng12-0 1.2.51-0ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-53.74-generic 4.4.30 Uname: Linux 4.4.0-53-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.2 Architecture: amd64 Date: Mon Dec 12 18:41:22 2016 Dependencies: gcc-6-base 6.0.1-0ubuntu1 libc6 2.23-0ubuntu5 libgcc1 1:6.0.1-0ubuntu1 multiarch-support 2.23-0ubuntu5 zlib1g 1:1.2.8.dfsg-2ubuntu4 DpkgTerminalLog: Preparing to unpack .../libpng12-0_1.2.54-1ubuntu1_amd64.deb ... Unpacking libpng12-0:amd64 (1.2.54-1ubuntu1) over (1.2.51-0ubuntu3) ... dpkg: error processing archive /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1_amd64.deb (--unpack): trying to overwrite shared '/usr/share/doc/libpng12-0/ANNOUNCE', which is different from other instances of package libpng12-0:amd64 DuplicateSignature: package:libpng12-0:1.2.51-0ubuntu3 Unpacking libpng12-0:amd64 (1.2.54-1ubuntu1) over (1.2.51-0ubuntu3) ... dpkg: error processing archive /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1_amd64.deb (--unpack): trying to overwrite shared '/usr/share/doc/libpng12-0/ANNOUNCE', which is different from other instances of package libpng12-0:amd64 ErrorMessage: trying to overwrite shared '/usr/share/doc/libpng12-0/ANNOUNCE', which is different from other instances of package libpng12-0:amd64 InstallationDate: Installed on 2016-12-03 (8 days ago) InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Release amd64 (20160421) RelatedPackageVersions: dpkg 1.18.4ubuntu1.1 apt 1.2.15 SourcePackage: libpng Title: package libpng12-0 1.2.51-0ubuntu3 failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libpng12-0/ANNOUNCE', which is different from other instances of package libpng12-0:amd64 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libpng/+bug/1649355/+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