Had problem with Ubuntu package cache.
➜ sources.list.d sudo apt-get update
Hit:1 http://fi.archive.ubuntu.com/ubuntu xenial InRelease
Hit:2 http://fi.archive.ubuntu.com/ubuntu xenial-updates InRelease
Hit:3 http://fi.archive.ubuntu.com/ubuntu xenial-backports InRelease
Hit:4 http://security.ubuntu.com/ubuntu xenial-security InRelease