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Unable to upgrade/install Plesk on Ubuntu/Debian: the following packages have unmet dependencies

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Robert Asilbekov
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Plesk Onyx for Linux kb: technical ABT: Group A

Applicable to:

  • Plesk Onyx for Linux
  • Plesk for Linux

Symptoms

Plesk installation or upgrade on Ubuntu/Debian OS fails with the following error:

PLESK_ERROR: 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 packages have unmet dependencies:
apache2 : Depends: apache2.2-common (= 2.2.22-13+deb7u3) but it is not going to be installed
apache2-mpm-prefork : Depends: apache2.2-common (= 2.2.22-13+deb7u3) but it is not going to be installed
Depends: apache2.2-bin (= 2.2.22-13+deb7u3) but it is not going to be installed
mysql-server : Depends: mysql-server-5.5 but it is not going to be installed
plesk-base : Depends: sw-engine (>= 2.13.8) but it is not going to be installed
plesk-core : Depends: libcurl3 (>= 7.16.2) but it is not going to be installed
awstats : Depends: perl:any
libapache2-mod-bw : Depends: apache2-api-20120211
libapache2-mod-perl2 : Depends: apache2-api-20120211
Depends: libxslt1.1 (>= 1.1.25) but it is not installable
Depends: libmyodbc but it is not installable
Depends: xsltproc but it is not installable
Depends: libtimedate-perl but it is not installable

or

PLESK_ERROR: The apg-get failed with the following message: Reading package lists... Building dependency tree... Reading state information... You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: apache2 :
Depends: apache2-bin (= 2.4.18-2ubuntu3.9) but 2.4.18-2ubuntu3.8 is to be installed
Depends: apache2-data (= 2.4.18-2ubuntu3.9) but 2.4.18-2ubuntu3.8 is to be installed linux-image-virtual:
Depends: linux-image-4.4.0-128-generic but it is not going to be installed plesk-service-node-utilities:
Depends: libidn2-0 (>= 0.6) but it is not going to be installed

Also the following error may appear:

PLESK_ERROR: Enabled repositories check
Plesk installation requires 'Ubuntu/xenial-updates/main' OS repository to be enabled.
Make sure it is available and enabled, then try again.

Cause

Non-standard repositories enabled in /etc/apt/sources.list file that Plesk is not compatible with, so a system cannot resolve all the dependencies properly.

Resolution

Warning: If Ubuntu 14 is being used, make sure that the repositories configured are specific to the Trusty version

  1. Connect to the server via SSH.

  2. Replace all contents of the file /etc/apt/sources.listwith the default content, like below:

    Default sources.list for:

    Ubuntu 20.04 LTS:

    CONFIG_TEXT: deb http://archive.ubuntu.com/ubuntu focal main restricted universe
    deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe
    deb http://security.ubuntu.com/ubuntu focal-security main restricted universe multiverse
    deb http://archive.canonical.com/ubuntu focal partner

    Ubuntu 18.04 LTS:

    CONFIG_TEXT: deb http://archive.ubuntu.com/ubuntu bionic main restricted universe
    deb http://archive.ubuntu.com/ubuntu bionic-updates main restricted universe
    deb http://security.ubuntu.com/ubuntu bionic-security main restricted universe multiverse
    deb http://archive.canonical.com/ubuntu bionic partner

    Ubuntu 16.04 LTS:

    CONFIG_TEXT: deb http://archive.ubuntu.com/ubuntu xenial main restricted universe
    deb http://archive.ubuntu.com/ubuntu xenial-updates main restricted universe
    deb http://security.ubuntu.com/ubuntu xenial-security main restricted universe multiverse
    deb http://archive.canonical.com/ubuntu xenial partner

    Debian 10.x:

    CONFIG_TEXT: deb http://ftp.debian.org/debian buster main contrib non-free
    deb http://ftp.debian.org/debian buster-updates main contrib non-free
    deb http://security.debian.org buster/updates main contrib non-free

    or:

    CONFIG_TEXT: deb http://deb.debian.org/debian/ buster main non-free contrib
    deb http://security.debian.org/debian-security buster/updates main contrib non-free
    deb http://deb.debian.org/debian/ buster-updates main contrib non-free

    Debian 9.x:

    CONFIG_TEXT: deb http://ftp.debian.org/debian stretch main contrib non-free
    deb http://ftp.debian.org/debian stretch-updates main contrib non-free
    deb http://security.debian.org stretch/updates main contrib non-free

  3. Update package lists and install missing dependencies:

    # apt-get update
    # apt-get -f install

  4. Run Plesk installation / update / upgrade.

Comments

3 comments

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    Sam Smith

    Hi How can I do this in Debian 8?  Any solution please

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    Ivan Postnikov

    Hello Sam Smith

    In your case update doesn't work because Debian 8 has reached End-of-life.

    The recommendation is to perform migration to a server with a newer update: https://support.plesk.com/hc/en-us/articles/213912645

    Alternatively, perform dist-upgrade first: https://support.plesk.com/hc/en-us/articles/213410369.

    The 2nd option is considered as riskier and a server snapshot before upgrade is recommended.

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  • Avatar
    Swapnil Wagh

    Hi Yulia Plokhotnikova,

    I am facing this error even after correcting the sources.list file:

    ===============

    Enabled repositories check
    Plesk installation requires 'Debian/stretch/main' OS repository to be enabled.
    Make sure it is available and enabled, then try again.
    Plesk pre-upgrade check
    FATAL_ERROR: Unable to find Plesk 17.x. Tool must be launched prior to upgrade to Plesk 18.0.31 for the purpose of getting a report on potential problems with the upgrade.
    =============

    Current Plesk version is Version 17.5.3. I am upgrading to "Plesk Obsidian 18.0.31".
     
    Would you or someone else please help?
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