Why would you want to install both libjpeg-progs and libjpeg-turbo-progs? "apt-cache depends libjpeg-progs" tells they conflict and replace each other.
I noticed similar issue after upgrading from Trusty to Xenial. Both packages were installed. I resolved that by purging libjpeg-progs. I did not want to purge libjpeg-turbo-progs, because jhead depends on it and I wanted to keep it. I had no problem by purging libjpeg-progs by apt, but some have had and here is related post: https://askubuntu.com/q/766929/21005 BTW what is libjpeg8-empty? $ apt-cache policy libjpeg8-empty N: Unable to locate package libjpeg8-empty I see similar bugs Bug #1576010 Bug #1559754 Bug #1576937 Bug #1571195 Bug #1527455 Bug #1516242 ** Tags added: package-conflict -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libjpeg8-empty in Ubuntu. https://bugs.launchpad.net/bugs/1550124 Title: package libjpeg-progs 8c-2ubuntu8 failed to install/upgrade: trying to overwrite '/usr/bin/rdjpgcom', which is also in package libjpeg-turbo- progs 1.4.2-0ubuntu1 Status in libjpeg8-empty package in Ubuntu: Confirmed Bug description: update failed with this. ProblemType: Package DistroRelease: Ubuntu 16.04 Package: libjpeg-progs 8c-2ubuntu8 ProcVersionSignature: Ubuntu 4.4.0-2.16-generic 4.4.0 Uname: Linux 4.4.0-2-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Mon Feb 22 20:02:43 2016 ErrorMessage: trying to overwrite '/usr/bin/rdjpgcom', which is also in package libjpeg-turbo-progs 1.4.2-0ubuntu1 InstallationDate: Installed on 2012-09-23 (1251 days ago) InstallationMedia: Ubuntu GNOME Remix 12.10 "Quantal Quetzal" - Alpha amd64(20120922) RelatedPackageVersions: dpkg 1.18.4ubuntu1 apt 1.2.3 SourcePackage: libjpeg8-empty Title: package libjpeg-progs 8c-2ubuntu8 failed to install/upgrade: trying to overwrite '/usr/bin/rdjpgcom', which is also in package libjpeg-turbo-progs 1.4.2-0ubuntu1 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libjpeg8-empty/+bug/1550124/+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
