package ffmpeg (not installed) failed to install/upgrade: trying to overwrite '/usr/share/man/man1/qt-faststart.1.gz', which is also in package libav-tools 6:9.18-0ubuntu0.14.04.1

[dariush hasanpoor]

package ffmpeg (not installed) failed to install/upgrade: trying to overwrite '/usr/share/man/man1/qt-faststart.1.gz', which is also in package libav-tools 6:9.18-0ubuntu0.14.04.1

Cannot install ffmpeg!!

My installation terminal output:

$ sudo apt-get install ffmpeg
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  ffmpeg
0 upgraded, 1 newly installed, 0 to remove and 2 not upgraded.
Need to get 0 B/245 kB of archives.
After this operation, 791 kB of additional disk space will be used.
(Reading database ... 425071 files and directories currently installed.)
Preparing to unpack .../ffmpeg_4%3a0.5.9-0ubuntu0.10.04.3_amd64.deb ...
Unpacking ffmpeg (4:0.5.9-0ubuntu0.10.04.3) ...
dpkg: error processing archive /var/cache/apt/archives/ffmpeg_4%3a0.5.9-0ubuntu0.10.04.3_amd64.deb (--unpack):
 trying to overwrite '/usr/share/man/man1/qt-faststart.1.gz', which is also in package libav-tools 6:9.18-0ubuntu0.14.04.1
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: ffmpeg (not installed)
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
NonfreeKernelModules: nvidia wl
ApportVersion: 2.14.1-0ubuntu3.10
Architecture: amd64
Date: Sun May 24 22:27:17 2015
DuplicateSignature: package:ffmpeg:(not installed):trying to overwrite '/usr/share/man/man1/qt-faststart.1.gz', which is also in package libav-tools 6:9.18-0ubuntu0.14.04.1
ErrorMessage: trying to overwrite '/usr/share/man/man1/qt-faststart.1.gz', which is also in package libav-tools 6:9.18-0ubuntu0.14.04.1
InstallationDate: Installed on 2014-05-20 (369 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: ffmpeg
Title: package ffmpeg (not installed) failed to install/upgrade: trying to overwrite '/usr/share/man/man1/qt-faststart.1.gz', which is also in package libav-tools 6:9.18-0ubuntu0.14.04.1
UpgradeStatus: No upgrade log present (probably fresh install)

[Andreas Cadhalpun (andreas-cadhalpun)]

There is no ffmpeg package in Ubuntu 14.04 LTS "Trusty Tahr".

You're trying to install ffmpeg 4:0.5.9-0ubuntu0.10.04.3 from Ubuntu 10.04 LTS "Lucid Lynx" in trusty, so you should expect problems.

This problem does not exist in the ffmpeg package in Ubuntu 15.04 "Vivid Vervet".

Thus this bug is invalid.