Unable to install or update Plesk: there is no product with the ID 'plesk' at the installation source

Symptoms

• Plesk installation or update fails with one of the following errors:

  CONFIG_TEXT: ERROR: There is no product with the ID 'plesk' at the installation source.

  CONFIG_TEXT: ERROR: There is no release with ID 'PLESK_XX_X_XX' of product 'plesk' at the installation source.

• Manual installation is interrupted with the following message:

  CONFIG_TEXT: Installation will not continue because of your operating system
  "'Centos' 'Linux' '6 .4 '' x86_64 '" is not supported.
  Please see the Plesk release notes for the full list of
  supported operating systems.

Cause

An unsupported Operating System is installed on the server.

Resolution

Consider dist-upgrading your OS or migrate to a new server with one of the currently supported Operating Systems as per the following list.

Note: you may check if your OS was deprecated here: Planned Deprecations and Removals