I can confirm this is still an issue in the latest Xenial LTS installations.
This seems to primarily be an issue with multiarch installations. This prevents many i386 packages from being installed on modern amd64 LTS systems. This is a high priority bug affecting many users and has been open for nearly 2 years. Is there any way to get this some attention? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to perl in Ubuntu. https://bugs.launchpad.net/bugs/1574351 Title: package libperl5.22 5.22.1-9 failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libperl5.22/changelog.Debian.gz', which is different from other instances of package libperl5.22:i386 Status in perl package in Ubuntu: Confirmed Bug description: Don't run aplication after upgrade from 14.04 ProblemType: Package DistroRelease: Ubuntu 16.04 Package: libperl5.22 5.22.1-9 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 Date: Sun Apr 24 21:08:20 2016 DpkgTerminalLog: Preparing to unpack .../libperl5.22_5.22.1-9_i386.deb ... Unpacking libperl5.22:i386 (5.22.1-9) ... dpkg: error processing archive /var/cache/apt/archives/libperl5.22_5.22.1-9_i386.deb (--unpack): trying to overwrite shared '/usr/share/doc/libperl5.22/changelog.Debian.gz', which is different from other instances of package libperl5.22:i386 DuplicateSignature: Unpacking libperl5.22:i386 (5.22.1-9) ... dpkg: error processing archive /var/cache/apt/archives/libperl5.22_5.22.1-9_i386.deb (--unpack): trying to overwrite shared '/usr/share/doc/libperl5.22/changelog.Debian.gz', which is different from other instances of package libperl5.22:i386 ErrorMessage: trying to overwrite shared '/usr/share/doc/libperl5.22/changelog.Debian.gz', which is different from other instances of package libperl5.22:i386 InstallationDate: Installed on 2016-04-24 (0 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) RelatedPackageVersions: dpkg 1.18.4ubuntu1 apt 1.2.10ubuntu1 SourcePackage: perl Title: package libperl5.22 5.22.1-9 failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libperl5.22/changelog.Debian.gz', which is different from other instances of package libperl5.22:i386 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/perl/+bug/1574351/+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