Debian – How to install php5-memcached on Debian 7 with PHP 5.5

aptdebianPHPsoftware installation

My attempts to install the PHP 5 Memcached module on my Debian 7 VirtualBox VM failed:

root@testvm:~# apt-get install php5-memcached
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:
 php5-memcached : Depends: libmemcached11 but it is not installable
E: Unable to correct problems, you have held broken packages.

I also could not install it over Synaptic Package Manager.

I guess, the problem can lie in the missing source information in /etc/apt/sources.list.

UPDATE:

/etc/apt/sources.list

# deb cdrom:[Debian GNU/Linux 7.1.0 _Wheezy_ - Official amd64 NETINST Binary-1 20130615-23:04]/ wheezy main

# deb cdrom:[Debian GNU/Linux 7.1.0 _Wheezy_ - Official amd64 NETINST Binary-1 20130615-23:04]/ wheezy main

deb http://ftp.de.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.de.debian.org/debian/ wheezy main contrib non-free

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://ftp.de.debian.org/debian/ wheezy-updates main contrib non-free
deb-src http://ftp.de.debian.org/debian/ wheezy-updates main contrib non-free

# nginx
deb http://packages.dotdeb.org wheezy all
deb-src http://packages.dotdeb.org wheezy all

# PHP 5.5
deb http://packages.dotdeb.org wheezy-php55 all
deb-src http://packages.dotdeb.org wheezy-php55 all

UPDATE:

I tried to install the missing dependency manually, but it also doesn't work:

root@devvm:~# apt-get install libmemcached11
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package libmemcached11 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'libmemcached11' has no installation candidate

UPDATE:

root@devvm:~# apt-cache depends php5-memcached libmemcached10
php5-memcached
  Depends: libc6
  Depends: <libmemcached11>
  Depends: zlib1g
  Depends: <phpapi-20121212>
    libapache2-mod-php5filter
    libapache2-mod-php5
    libphp5-embed
    php5-cgi
    php5-cli
    php5-fpm
  Depends: php5-common
 |PreDepends: dpkg
  PreDepends: <dpkg-maintscript-helper>
libmemcached10
  Depends: libc6
  Depends: libgcc1
  Depends: libstdc++6
  PreDepends: multiarch-support
  Conflicts: <libmemcached2>
  Conflicts: <libmemcached3>
  Conflicts: <libmemcached6>
  Conflicts: <libmemcached9>

Best Answer

To solve your problem, you just have to add the following to your sources.list :

# Wheezy
deb http://ftp.hosteurope.de/mirror/packages.dotdeb.org/ wheezy all
deb-src http://ftp.hosteurope.de/mirror/packages.dotdeb.org/ wheezy all

# Wheezy-php55
deb http://ftp.hosteurope.de/mirror/packages.dotdeb.org/ wheezy-php55 all
deb-src http://ftp.hosteurope.de/mirror/packages.dotdeb.org/ wheezy-php55 all

Indeed, the missing dependency (libmemcached11) is present in the wheezy distribution of the dotdeb repository.

Related Solutions

Debian – Trouble migrating from Yum to apt-get

About your requirements, Iceweasel is the supported Firefox derivative (fork), I'm currently running debian as my desktop OS at work and use iceweasel every day, no problem. Gnome3, I think it'll be available on the next stable release, BTW what release are you running? Squeeze? If so I think (IIRC) Wheezy will have it. And finally, about graphics performance/quality, that depends a lot on your graphics card and its driver, but if you think of it like having transparencies, windows closing with fancy effects and so on, you'll need a moderm desktop or compiz (work with gnome2) which I think its available on stable (wheeze).

I have modified a bit your sources.list for wheeze, do you mind to test it and report back?

deb http://http.us.debian.org/debian/ squeeze contrib non-free main
deb-src http://http.us.debian.org/debian/ squeeze main

deb http://security.debian.org/ squeeze/updates main non-free contrib
deb-src http://http.us.debian.org/debian/ squeeze/updates main

# squeeze-updates, previously known as 'volatile'
deb http://mirror.cse.iitk.ac.in/debian/ squeeze-updates main non-free contrib
deb-src http://mirror.cse.iitk.ac.in/debian/ squeeze-updates main non-free contrib

# 3rd party repositories
deb http://packages.dotdeb.org squeeze all
deb-src http://packages.dotdeb.org squeeze all
deb http://www.deb-multimedia.org squeeze main non-free

If you happen to be using wheezy or sid you'll have to change all squeeze ocurrences for the one you're using.

Please, backup your sources.list before replacing it, then test it as follows:

Refresh caches

# apt-get update

Search package

# apt-cache vlc

Install package

# apt-get install <package_name>

If find trouble, please report back with output for those three commands, or at least for the first and last.

Also, if you are already using Wheezy or sid, forget what I said about Gnome3 not being available, it should be there but wheezy is yet to be release and sid is always the development branch.

Debian – Duplicate sources.list entry

The sources.list file is actually several files: /etc/apt/sources.list, and files called something.list in the directory /etc/apt/sources.list.d.

This message tells you that you have duplicate entries in those files: you have several lines pointing to the same source. This is a warning: it isn't wrong per se, but it indicates that your configuration is probably not right. Look for lines starting with deb http://http.us.debian.org/debian wheezy in the files I mentioned above. You have multiple such lines containing contrib and non-free. Either remove the redundant lines or correct them if you meant for them to point to something else.

Best Answer

Related Solutions

Debian – Trouble migrating from Yum to apt-get

Debian – Duplicate sources.list entry

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