MONO MUST BE INSTALLED IN YOUR DISTRO TO RUN THE EMULATOR

#https://websiteforstudents.com/how-to-install-mono-on-ubuntu-18-04-16-04/
sudo apt-get -y install gnupg ca-certificates
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
echo "deb https://download.mono-project.com/repo/ubuntu stable-bionic main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
sudo apt install mono-complete
