Unable to update Plesk on Debian/Ubuntu: The repository does not have a release file

Symptoms

When updating system packages in Plesk at Tools & Settings > System Updates, the operation fails with the following error message:

Error: Unable to get packages list: INFO: pum is called with arguments: ['--list', '--repo-info', '--json']  ERROR: E:The repository 'http://autoinstall.plesk.com/RUBY_0.0.2 jammy Release' does not have a Release file.

Cause

The repository has not been updated to support the current Ubuntu/Debian distribution.

Resolution

Solution I:

Update the repository format to include the release name or version of the current OS:

1. Connect to the Plesk server via SSH.

2. Find the current OS release:

   # lsb_release -sc
   focal

3. Find the file with the affected repository:

   # grep -r RUBY /etc/apt/sources.list.d/* /etc/apt/sources.list
   /etc/apt/sources.list.d/example.list http://autoinstall.plesk.com/RUBY_0.0.2 ...

4. Open the affected file in a text editor (for example, vi editor) and change the release name in accordance with the following resource:

   • https://help.ubuntu.com/community/Repositories/CommandLine#Adding_Repositories

Solution II:

If the repository from the error message is no longer required, remove it from the repository configuration by deleting the invalid line from the repository file where this line exists:

# grep -r RUBY /etc/apt/sources.list.d/* /etc/apt/sources.list
/etc/apt/sources.list.d/example.list http://autoinstall.plesk.com/RUBY_0.0.2