[Bug 1799215] Re: package libpng12-0 1.2.54-1ubuntu1 failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libpng12-0/changelog.Debian.gz', which is different from other instances of package libpng12-0:amd64

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: libpng (Ubuntu)
       Status: New => Confirmed

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Title:
  package libpng12-0 1.2.54-1ubuntu1 failed to install/upgrade: trying
  to overwrite shared '/usr/share/doc/libpng12-0/changelog.Debian.gz',
  which is different from other instances of package libpng12-0:amd64

Status in libpng package in Ubuntu:
  Confirmed

Bug description:
  I have an error on my installation package. I can not force install. It "seems" that my "installed packages have unmet dependencies".
  This is the output of the terminal :

  
  sudo apt-get install -f
  [sudo] password for ***********: 
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Correcting dependencies... Done
  The following packages were automatically installed and are no longer required:
    libllvm5.0 linux-headers-4.13.0-45 linux-headers-4.13.0-45-generic
    linux-headers-4.4.0-131 linux-headers-4.4.0-131-generic
    linux-image-4.13.0-43-generic linux-image-4.13.0-45-generic
    linux-image-4.4.0-131-generic linux-image-extra-4.13.0-43-generic
    linux-image-extra-4.13.0-45-generic linux-image-extra-4.4.0-131-generic
  Use 'sudo apt autoremove' to remove them.
  The following additional packages will be installed:
    libpng12-0
  The following packages will be upgraded:
    libpng12-0
  1 to upgrade, 0 to newly install, 0 to remove and 89 not to upgrade.
  2 not fully installed or removed.
  Need to get 0 B/116 kB of archives.
  After this operation, 0 B of additional disk space will be used.
  Do you want to continue? [Y/n] y
  (Reading database ... 326539 files and directories currently installed.)
  Preparing to unpack .../libpng12-0_1.2.54-1ubuntu1.1_amd64.deb ...
  Unpacking libpng12-0:amd64 (1.2.54-1ubuntu1.1) over (1.2.54-1ubuntu1) ...
  dpkg: error processing archive /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1.1_amd64.deb (--unpack):
   trying to overwrite shared '/usr/share/doc/libpng12-0/changelog.Debian.gz', which is different from other instances of package libpng12-0:amd64
  Processing triggers for libc-bin (2.23-0ubuntu10) ...
  Errors were encountered while processing:
   /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1.1_amd64.deb
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  Thanks for your help !

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: libpng12-0 1.2.54-1ubuntu1
  ProcVersionSignature: Ubuntu 4.15.0-32.35~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-32-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2.18
  AptOrdering:
   libpng12-0: Install
   libpng12-0: Configure
   libpng12-0: Configure
   NULL: ConfigurePending
  Architecture: amd64
  Date: Mon Oct 22 13:24:25 2018
  Dependencies:
   gcc-6-base 6.0.1-0ubuntu1
   libc6 2.23-0ubuntu10
   libgcc1 1:6.0.1-0ubuntu1
   zlib1g 1:1.2.8.dfsg-2ubuntu4.1
  DpkgHistoryLog:
   Start-Date: 2018-10-22  13:24:22
   Commandline: apt-get install -f
   Requested-By: eternalfalcon (1000)
   Upgrade: libpng12-0:amd64 (1.2.54-1ubuntu1, 1.2.54-1ubuntu1.1)
  DpkgTerminalLog:
   Preparing to unpack .../libpng12-0_1.2.54-1ubuntu1.1_amd64.deb ...
   Unpacking libpng12-0:amd64 (1.2.54-1ubuntu1.1) over (1.2.54-1ubuntu1) ...
   dpkg: error processing archive /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1.1_amd64.deb (--unpack):
    trying to overwrite shared '/usr/share/doc/libpng12-0/changelog.Debian.gz', which is different from other instances of package libpng12-0:amd64
  DuplicateSignature:
   package:libpng12-0:1.2.54-1ubuntu1
   Unpacking libpng12-0:amd64 (1.2.54-1ubuntu1.1) over (1.2.54-1ubuntu1) ...
   dpkg: error processing archive /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1.1_amd64.deb (--unpack):
    trying to overwrite shared '/usr/share/doc/libpng12-0/changelog.Debian.gz', which is different from other instances of package libpng12-0:amd64
  ErrorMessage: trying to overwrite shared '/usr/share/doc/libpng12-0/changelog.Debian.gz', which is different from other instances of package libpng12-0:amd64
  InstallationDate: Installed on 2018-05-24 (150 days ago)
  InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.4
   apt  1.2.27
  SourcePackage: libpng
  Title: package libpng12-0 1.2.54-1ubuntu1 failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libpng12-0/changelog.Debian.gz', which is different from other instances of package libpng12-0:amd64
  UpgradeStatus: No upgrade log present (probably fresh install)

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