Bug#724854: apt: incorrect warning about unmet dependencies with virtual package
Package: apt
Version: 0.9.7.9
Severity: normal
On wheezy amd64, I'm getting:
faheem@orwell:~$ sudo apt-get install libjpeg62-dev libtiff4-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libtiff4-dev : Depends: libjpeg-dev
E: Unable to correct problems, you have held broken packages.
It is fairly obvious what the problem is.
libtiff4-dev depends on the virtual package libjpeg-dev, which is
currently provided by the installed libjpeg8-dev.
faheem@orwell:~$ sudo apt-get install libjpeg-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'libjpeg8-dev' instead of 'libjpeg-dev'
libjpeg8-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
However, libjpeg62-dev also provides libjpeg-dev. When installing
libjpeg62-dev, libjpeg8-dev is removed.
faheem@orwell:~$ sudo apt-get install libjpeg62-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
libjpeg62
The following packages will be REMOVED:
libjpeg8-dev r-base-dev
The following NEW packages will be installed:
libjpeg62 libjpeg62-dev
0 upgraded, 2 newly installed, 2 to remove and 0 not upgraded.
Need to get 298 kB of archives.
After this operation, 78.8 kB of additional disk space will be used.
Do you want to continue [Y/n]?
So, we are trying to install package A which depends on virtual
package V, which is provides by the installed package V1. However, we
are simultaneously trying to install package V2 which also provides
V. In a nutshell,
sudo apt-get install A V2
is what is giving the error.
This odd combination presumably confuses apt, but there is no error
here as such.
This may be a duplicate of a known problem. I saw a couple of bugs
that look kind of similar, but I'm not sure. If so, please merge as
appropriate. Thanks.
Regards, Faheem
-- Package-specific info:
-- apt-config dump --
APT "";
APT::Architecture "amd64";
APT::Build-Essential "";
APT::Build-Essential:: "build-essential";
APT::Install-Recommends "1";
APT::Install-Suggests "0";
APT::Authentication "";
APT::Authentication::TrustCDROM "true";
APT::NeverAutoRemove "";
APT::NeverAutoRemove:: "^firmware-linux.*";
APT::NeverAutoRemove:: "^linux-firmware$";
APT::NeverAutoRemove:: "^linux-image.*";
APT::NeverAutoRemove:: "^kfreebsd-image.*";
APT::NeverAutoRemove:: "^linux-restricted-modules.*";
APT::NeverAutoRemove:: "^linux-ubuntu-modules-.*";
APT::NeverAutoRemove:: "^gnumach$";
APT::NeverAutoRemove:: "^gnumach-image.*";
APT::Never-MarkAuto-Sections "";
APT::Never-MarkAuto-Sections:: "metapackages";
APT::Never-MarkAuto-Sections:: "restricted/metapackages";
APT::Never-MarkAuto-Sections:: "universe/metapackages";
APT::Never-MarkAuto-Sections:: "multiverse/metapackages";
APT::Never-MarkAuto-Sections:: "oldlibs";
APT::Never-MarkAuto-Sections:: "restricted/oldlibs";
APT::Never-MarkAuto-Sections:: "universe/oldlibs";
APT::Never-MarkAuto-Sections:: "multiverse/oldlibs";
APT::Update "";
APT::Update::Post-Invoke-Success "";
APT::Update::Post-Invoke-Success:: "test -x /usr/bin/apt-show-versions || exit 0 ; apt-show-versions -i";
APT::Architectures "";
APT::Architectures:: "amd64";
APT::Architectures:: "i386";
APT::Compressor "";
APT::Compressor::. "";
APT::Compressor::.::Name ".";
APT::Compressor::.::Extension "";
APT::Compressor::.::Binary "";
APT::Compressor::.::Cost "1";
APT::Compressor::gzip "";
APT::Compressor::gzip::Name "gzip";
APT::Compressor::gzip::Extension ".gz";
APT::Compressor::gzip::Binary "gzip";
APT::Compressor::gzip::Cost "2";
APT::Compressor::gzip::CompressArg "";
APT::Compressor::gzip::CompressArg:: "-9n";
APT::Compressor::gzip::UncompressArg "";
APT::Compressor::gzip::UncompressArg:: "-d";
APT::Compressor::bzip2 "";
APT::Compressor::bzip2::Name "bzip2";
APT::Compressor::bzip2::Extension ".bz2";
APT::Compressor::bzip2::Binary "bzip2";
APT::Compressor::bzip2::Cost "3";
APT::Compressor::bzip2::CompressArg "";
APT::Compressor::bzip2::CompressArg:: "-9";
APT::Compressor::bzip2::UncompressArg "";
APT::Compressor::bzip2::UncompressArg:: "-d";
APT::Compressor::xz "";
APT::Compressor::xz::Name "xz";
APT::Compressor::xz::Extension ".xz";
APT::Compressor::xz::Binary "xz";
APT::Compressor::xz::Cost "4";
APT::Compressor::xz::CompressArg "";
APT::Compressor::xz::CompressArg:: "-6";
APT::Compressor::xz::UncompressArg "";
APT::Compressor::xz::UncompressArg:: "-d";
APT::Compressor::lzma "";
APT::Compressor::lzma::Name "lzma";
APT::Compressor::lzma::Extension ".lzma";
APT::Compressor::lzma::Binary "xz";
APT::Compressor::lzma::Cost "5";
APT::Compressor::lzma::CompressArg "";
APT::Compressor::lzma::CompressArg:: "--format=lzma";
APT::Compressor::lzma::CompressArg:: "-9";
APT::Compressor::lzma::UncompressArg "";
APT::Compressor::lzma::UncompressArg:: "--format=lzma";
APT::Compressor::lzma::UncompressArg:: "-d";
APT::Compressor::::Name "";
APT::Compressor::::Extension ".";
APT::Compressor::::Binary "";
APT::Compressor::::Cost "100";
APT::Compressor::::CompressArg "";
APT::Compressor::::CompressArg:: "-9";
APT::Compressor::::UncompressArg "";
APT::Compressor::::UncompressArg:: "-d";
Dir "/";
Dir::State "var/lib/apt/";
Dir::State::lists "lists/";
Dir::State::cdroms "cdroms.list";
Dir::State::mirrors "mirrors/";
Dir::State::extended_states "extended_states";
Dir::State::status "/var/lib/dpkg/status";
Dir::Cache "var/cache/apt/";
Dir::Cache::archives "archives/";
Dir::Cache::srcpkgcache "srcpkgcache.bin";
Dir::Cache::pkgcache "pkgcache.bin";
Dir::Etc "etc/apt/";
Dir::Etc::sourcelist "sources.list";
Dir::Etc::sourceparts "sources.list.d";
Dir::Etc::vendorlist "vendors.list";
Dir::Etc::vendorparts "vendors.list.d";
Dir::Etc::main "apt.conf";
Dir::Etc::netrc "auth.conf";
Dir::Etc::parts "apt.conf.d";
Dir::Etc::preferences "preferences";
Dir::Etc::preferencesparts "preferences.d";
Dir::Etc::trusted "trusted.gpg";
Dir::Etc::trustedparts "trusted.gpg.d";
Dir::Bin "";
Dir::Bin::methods "/usr/lib/apt/methods";
Dir::Bin::solvers "";
Dir::Bin::solvers:: "/usr/lib/apt/solvers";
Dir::Bin::dpkg "/usr/bin/dpkg";
Dir::Bin::bzip2 "/bin/bzip2";
Dir::Bin::xz "/usr/bin/xz";
Dir::Media "";
Dir::Media::MountPath "/media/cdrom";
Dir::Log "var/log/apt";
Dir::Log::Terminal "term.log";
Dir::Log::History "history.log";
Dir::Ignore-Files-Silently "";
Dir::Ignore-Files-Silently:: "~$";
Dir::Ignore-Files-Silently:: "\.disabled$";
Dir::Ignore-Files-Silently:: "\.bak$";
Dir::Ignore-Files-Silently:: "\.dpkg-[a-z]+$";
Dir::Ignore-Files-Silently:: "\.save$";
Dir::Ignore-Files-Silently:: "\.orig$";
Acquire "";
Acquire::cdrom "";
Acquire::cdrom::mount "/media/cdrom";
Acquire::Languages "";
Acquire::Languages:: "en";
Acquire::Languages:: "none";
DPkg "";
DPkg::Pre-Invoke "";
DPkg::Pre-Invoke:: "if [ -x /usr/bin/etckeeper ]; then etckeeper pre-install; fi";
DPkg::Post-Invoke "";
DPkg::Post-Invoke:: "if [ -x /usr/bin/etckeeper ]; then etckeeper post-install; fi";
DPkg::Pre-Install-Pkgs "";
DPkg::Pre-Install-Pkgs:: "/usr/bin/apt-listchanges --apt || test $? -ne 10";
DPkg::Pre-Install-Pkgs:: "/usr/sbin/dpkg-preconfigure --apt || true";
DPkg::Tools "";
DPkg::Tools::Options "";
DPkg::Tools::Options::/usr/bin/apt-listchanges "";
DPkg::Tools::Options::/usr/bin/apt-listchanges::Version "2";
RPM "";
RPM::Pre-Invoke "";
RPM::Pre-Invoke:: "if [ -x /usr/bin/etckeeper ]; then etckeeper pre-install; fi";
RPM::Post-Invoke "";
RPM::Post-Invoke:: "if [ -x /usr/bin/etckeeper ]; then etckeeper post-install; fi";
CommandLine "";
CommandLine::AsString "apt-config dump";
-- /etc/apt/preferences --
Package: *
Pin: release a=testing
Pin-Priority: 50
Package: *
Pin: release a=unstable
Pin-Priority: 50
Package: *
Pin: origin backports.debian.org
Pin-Priority: 50
Package: *
Pin: release a=experimental
Pin-Priority: 1
Package: *
Pin: release a=snapshot.debian.net
Pin-Priority: 1
Package: *
Pin: origin www.deb-multimedia.org
Pin-Priority: 1
Package: *
Pin: origin deb.grml.org
Pin-Priority: 1
-- /etc/apt/sources.list --
deb http://debian.lcs.mit.edu/debian/ squeeze main non-free contrib
#deb-src http://debian.lcs.mit.edu/debian/ wheezy main non-free contrib
deb http://debian.lcs.mit.edu/debian/ wheezy main non-free contrib
deb-src http://debian.lcs.mit.edu/debian/ wheezy main non-free contrib
deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib non-free
# wheezy-updates, previously known as 'volatile'
deb http://debian.lcs.mit.edu/debian/ wheezy-updates main contrib non-free
deb-src http://debian.lcs.mit.edu/debian/ wheezy-updates main contrib non-free
deb http://debian.lcs.mit.edu/debian/ testing main non-free contrib
deb-src http://debian.lcs.mit.edu/debian/ testing main non-free contrib
deb http://debian.lcs.mit.edu/debian/ unstable main non-free contrib
deb-src http://debian.lcs.mit.edu/debian/ unstable main non-free contrib
deb http://debian.lcs.mit.edu/debian/ experimental main non-free contrib
deb-src http://debian.lcs.mit.edu/debian/ experimental main non-free contrib
deb http://debian.lcs.mit.edu/debian/ wheezy-backports main contrib non-free
deb-src http://debian.lcs.mit.edu/debian/ wheezy-backports main contrib non-free
deb http://lib.stat.cmu.edu/R/CRAN/bin/linux/debian wheezy-cran3/
deb-src http://lib.stat.cmu.edu/R/CRAN/bin/linux/debian wheezy-cran3/
deb http://www.deb-multimedia.org wheezy main non-free
deb-src http://www.deb-multimedia.org wheezy main non-free
-- System Information:
Debian Release: 7.1
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable'), (500, 'oldstable'), (50, 'unstable'), (50, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.2.0-4-amd64 (SMP w/6 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages apt depends on:
ii debian-archive-keyring 2012.4
ii gnupg 1.4.12-7+deb7u1
ii libapt-pkg4.12 0.9.7.9
ii libc6 2.13-38
ii libgcc1 1:4.7.2-5
ii libstdc++6 4.7.2-5
apt recommends no packages.
Versions of packages apt suggests:
pn apt-doc <none>
ii aptitude 0.6.8.2-1
ii dpkg-dev 1.16.10
ii python-apt 0.8.8.2
ii xz-utils 5.1.1alpha+20120614-2
-- no debconf information
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