apt-file update - missing file

The file Contents-amd64.gz is missing from both the repos: security.debian.org and download.proxmox.com . I do not know what they contain. The info was taken from this link.
Is this an issue with ProxMox v1.5 as well? Since I did an apt-get update and apt-get install apt-file and did not do a apt-get dist-upgrade I thought it was a version problem and that paths and file names may have changed during the update.
 
The file Contents-amd64.gz is missing from both the repos

The question is why we should generate that - Obviously apt-file requires it, but I see no real reason to support apt-file - I do not know a single user which requires that (besides you).