rm -rf /var/lib/apt/lists/* /tmp/*

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
echo "deb http://download.mono-project.com/repo/ubuntu xenial main" | sudo tee /etc/apt/sources.list.d/mono-official.list
sudo apt-get update

sudo apt-get install -y mono-runtime
sudo apt-get install -y binutils curl mono-devel ca-certificates-mono fsharp mono-vbnc nuget referenceassemblies-pcl