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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

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marked as duplicate by David Foerster, Eric Carvalho, edwinksl, Zanna, Jeremy31 Sep 24 '16 at 11:04

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
related askubuntu.com/questions/765274/… – TheWanderer Aug 25 '16 at 2:14
    
I don't use apt-fast and do not have this installed so that solution is not relevant – user1050648 Aug 25 '16 at 2:17
up vote 3 down vote accepted

You can delete all files in /var/lib/apt/lists/ and re-run apt-get update.

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