Every time I update packages using apt-get i get this error code.

N: Ignoring file '20auto-upgrades.ucf-dist' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extension

I think the problem arose after I used apt-get dist-upgrade (or maybe just apt dist-upgrade)

I know this question is very simular to this one only the file name is different. This doesn't seem to be affecting my machine directly but I thought I might sort it out before it grows into a bigger problem.

I'm currently running 16.04

  • 4
    It probably was created when updating unattended-upgrades, you may have seen a prompt about accepting a new version of configuration files provided by the package maintainer or similar. I got it & just went ahead & deleted the file, - see manpages.ubuntu.com/manpages/xenial/man1/ucf.1.html
    – doug
    Nov 22, 2016 at 0:11
  • 1
    Yes your right there was a prompt about accepting a new version of configuration files. Backed up the file and then removed it from that directory and the error message is gone. Thanks!
    – synj
    Nov 22, 2016 at 0:36
  • @doug, could you write it as answer.
    – user.dz
    Dec 12, 2016 at 1:25


Browse other questions tagged or ask your own question.