Hi. My sbuild setup fails to build packages in jessie. W: Failed to fetch gzip:/var/lib/apt/lists/partial/_build_pdns-recursor-mVttBC_resolver-NUo8FV_apt%5farchive_._Sources.gz Invalid file format E: Some index files failed to download. They have been ignored, or old ones used instead. E: Updating apt archive failed Is it something related to recent update of apt ? --abhijith.