System update warning: Target Packages (...) is configured multiple times in /etc/apt/sources.list.d/plesk-ext-panel-migrator.list

Symptoms

• apt update displays the following warning

  W: Target Packages (all/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/plesk-ext-panel-migrator.list:1 and /etc/apt/sources.list.d/plesk-ext-site-import.list:1

• Both Plesk Migrator and Site Import are installed on the server

Cause

Product issue PMT-4794, fixed on Plesk Migrator 2.22.4.

Resolution

Update Plesk Migrator to remove these warnings. Otherwise, they can be safely ignored.

Warning: Removing .list repository files from /etc/apt/sources.list.d/ is not recommended.