When i get apt update on a Debian 9 server, i get following error
# apt update Get:1 http://ftp.debian.org/debian stretch-updates InRelease [91.0 kB] Hit:2 http://security.debian.org stretch/updates InRelease Hit:3 https://packages.sury.org/php stretch InRelease Ign:4 http://ftp.us.debian.org/debian stable InRelease Hit:5 http://ftp.us.debian.org/debian stable Release Fetched 91.0 kB in 0s (165 kB/s) Reading package lists... Done Building dependency tree Reading state information... Done All packages are up to date. W: Problem unlinking the file auxfiles - Clean (21: Is a directory) #
The problem is fixed by deleting
rm -rf /var/lib/apt/lists/
