http://developers.de/blogs/damir_dobric/archive/2017/10/09/cannot-install-net-core-on-ubuntu.aspxWhen trying to install .NET Core on Ubuntu as described here , with following command: sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-ubuntu-xenial-prod xenial main" > /etc/apt/sources.list.d/dotnetdevenCommunityServer 2008 SP1 (Build: 30619.63)