From the log:
2005/09/19 18:08 NZST [-] [apt_pkg] No Packages files
available for debian-amd64 backend
From the filesystem:
sleep:/home/aptproxy/debian-amd64/dists/sid/main/binary-amd64#
ls
Packages.bz2
Background:
Recent (sid) apt-get's fetch Packages.bz2 instead of
Packages.gz
Apt-proxy needs to read the Packages.bz2 files. When it
doesn't, apt-proxy-import fails to find any package file
and can not import existing debs.