Public bug reported:
For some reason libavutil55_7 and libswresample2_7 packages failed to
install. So I tried "sudo apt --fix-broken install" command and got a
message that both of them are "not a Debian format archive."
Below is the error log I got in command prompt.
sudo apt --fix-broken install
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:
libcrypto++6 libftgl2 libglew2.0 liblastfm1 libmng2 libmygpo-qt1
libmysqlclient20 libprojectm2v5 libqjson0 libqt4-dbus libqt4-declarative
libqt4-network libqt4-opengl libqt4-script libqt4-sql libqt4-sql-mysql
libqt4-sql-sqlite libqt4-xml libqt4-xmlpatterns libqtcore4 libqtdbus4
libqtgui4 libqxt-core0 libqxt-gui0 mysql-common projectm-data qdbus
qt-at-spi qtchooser qtcore4-l10n
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
libavutil55 libswresample2
The following NEW packages will be installed:
libavutil55 libswresample2
0 upgraded, 2 newly installed, 0 to remove and 4 not upgraded.
6 not fully installed or removed.
Need to get 0 B/245 kB of archives.
After this operation, 765 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
E: Invalid archive signature
E: Internal error, could not locate member control.tar.{zstlz4gzxzbz2lzma}
E: Prior errors apply to
/var/cache/apt/archives/libavutil55_7%3a3.4.4-0ubuntu0.18.04.1_amd64.deb
E: Invalid archive signature
E: Internal error, could not locate member control.tar.{zstlz4gzxzbz2lzma}
E: Prior errors apply to
/var/cache/apt/archives/libswresample2_7%3a3.4.4-0ubuntu0.18.04.1_amd64.deb
debconf: apt-extracttemplates failed: No such file or directory
dpkg-deb: error:
'/var/cache/apt/archives/libavutil55_7%3a3.4.4-0ubuntu0.18.04.1_amd64.deb' is
not a Debian format archive
dpkg: error processing archive
/var/cache/apt/archives/libavutil55_7%3a3.4.4-0ubuntu0.18.04.1_amd64.deb
(--unpack):
dpkg-deb --control subprocess returned error exit status 2
dpkg-deb: error:
'/var/cache/apt/archives/libswresample2_7%3a3.4.4-0ubuntu0.18.04.1_amd64.deb'
is not a Debian format archive
dpkg: error processing archive
/var/cache/apt/archives/libswresample2_7%3a3.4.4-0ubuntu0.18.04.1_amd64.deb
(--unpack):
dpkg-deb --control subprocess returned error exit status 2
Errors were encountered while processing:
/var/cache/apt/archives/libavutil55_7%3a3.4.4-0ubuntu0.18.04.1_amd64.deb
/var/cache/apt/archives/libswresample2_7%3a3.4.4-0ubuntu0.18.04.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
I tried uninstalling them by force, but getting lot of other
dependencies on this single library such as libavutil55 etc.
Uninstalling each of them brought me all the way to uninstalling
"Clementine". So I also uninstalled "Clementine" also but now getting
all those old errors again.
I'm feeling like, I'm stuck inside infinite loop of dependency problems.
How to resolve this dependency headache. What can I do if some library
is not a Debian format archive and fails to install.
Thank you.
** Affects: ffmpeg (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- Cannot install libswresample2_7 and libavutil55_7
+ Cannot install libswresample2_7 and libavutil55_7 because they are not a
Debian format archive
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https://bugs.launchpad.net/bugs/1790364
Title:
Cannot install libswresample2_7 and libavutil55_7 because they are not
a Debian format archive
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