package libpng16-16 1.6.20-2 failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libpng16-16/ANNOUNCE', which is different from other instances of package libpng16-16:amd64

[alireza tajadod]

i don't know any shit

ProblemType: Package
DistroRelease: Ubuntu 17.10
Package: libpng16-16 1.6.20-2
ProcVersionSignature: Ubuntu 4.13.0-17.20-generic 4.13.8
Uname: Linux 4.13.0-17-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.5
AptOrdering:
 libpng16-16:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
Date: Sat Dec 9 12:33:55 2017
Dependencies:
 gcc-7-base 7.2.0-8ubuntu3
 libc6 2.26-0ubuntu2
 libgcc1 1:7.2.0-8ubuntu3
 zlib1g 1:1.2.11.dfsg-0ubuntu2
DpkgTerminalLog:
 Preparing to unpack .../libpng16-16_1.6.34-1_amd64.deb ...
 Unpacking libpng16-16:amd64 (1.6.34-1) over (1.6.20-2) ...
 dpkg: error processing archive /var/cache/apt/archives/libpng16-16_1.6.34-1_amd64.deb (--unpack):
  trying to overwrite shared '/usr/share/doc/libpng16-16/ANNOUNCE', which is different from other instances of package libpng16-16:amd64
DuplicateSignature:
 package:libpng16-16:1.6.20-2
 Unpacking libpng16-16:amd64 (1.6.34-1) over (1.6.20-2) ...
 dpkg: error processing archive /var/cache/apt/archives/libpng16-16_1.6.34-1_amd64.deb (--unpack):
  trying to overwrite shared '/usr/share/doc/libpng16-16/ANNOUNCE', which is different from other instances of package libpng16-16:amd64
ErrorMessage: trying to overwrite shared '/usr/share/doc/libpng16-16/ANNOUNCE', which is different from other instances of package libpng16-16:amd64
Python3Details: /usr/bin/python3.6, Python 3.6.3, python3-minimal, 3.6.3-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.14, python-minimal, 2.7.14-2ubuntu1
RelatedPackageVersions:
 dpkg 1.18.24ubuntu1
 apt 1.5.1
SourcePackage: libpng1.6
Title: package libpng16-16 1.6.20-2 failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libpng16-16/ANNOUNCE', which is different from other instances of package libpng16-16:amd64
UpgradeStatus: No upgrade log present (probably fresh install)

[Gianfranco Costamagna (costamagnagianfranco)]

I can't reproduce on a clean xenial/artful upgrade path on amd64, maybe something has changed on your system, preventing the upgrade to succeed.
In any case, now artful is mostly EOL.

[Gianfranco Costamagna (costamagnagianfranco)]

probably multiarch packages needs to be upgraded together...

[Gianfranco Costamagna (costamagnagianfranco)]

You seem to have forced them to be at different versions.