I started seeing this error msg
W: Problem unlinking the file lists - Clean (21: Is a directory)
whenever I tried to update using apt.
I have already tried sudo apt-get autoremove && sudo apt-get clean && sudo apt-get autoclean
but still the problem persists.
Need help pls. I'm running Ubuntu 16.04.1 64-bit
apt-fast
and do not have this installed so that solution is not relevant