Following:  https://github.com/UniversalDevicesInc/polyglot-v2#installation-instructions Running the installation script: wget -qO - https://raw.githubusercontent.com/UniversalDevicesInc/polyglot-v2/master/scripts/install.sh | bash -e Receiving: E: Package 'mongodb-server' has no installation candidate Simplified commands down to:  sudo apt install mongodb Package mongodb is not available, but is referred to by another package. This may mean that the package is missing, has b