Isso não é nada sério. Reinstale os pacotes:
sudo apt-get install --reinstall nginx-full nginx-common
Exemplo
Após excluir /var/lib/dpkg/info/mc.list
via
sudo rm sudo rm /var/lib/dpkg/info/mc.list
Eu obtenho o seguinte
% sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
gimp-gmic numix-icon-theme
2 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 5.130 kB of archives.
After this operation, 106 kB of additional disk space will be used.
Do you want to continue? [Y/n]
Get:1 http://ppa.launchpad.net/otto-kesselgulasch/gimp-edge/ubuntu/ vivid/main gimp-gmic amd64 1:1.6.5.2-0v0~ppa~edge [1.828 kB]
Get:2 http://ppa.launchpad.net/numix/ppa/ubuntu/ vivid/main numix-icon-theme all 0.3+524~201509050731~ubuntu15.04.1 [3.302 kB]
Fetched 5.130 kB in 4s (1.172 kB/s)
dpkg: warning: files list file for package 'mc' missing; assuming package has no files currently installed
Corrigido com
sudo apt-get install --reinstall mc