Am not able to get this running (nor mmex)in Bionic Pup,19.03. Any suggestions will be greatly appreciated. This is what I get in terminal:
sudo snap install mmex
error: cannot communicate with server: Post http://localhost/v2/snaps/mmex: dial unix /run/snapd.socket: connect: no such file or directory
Also:
sudo snap install snap-store
error: cannot communicate with server: Post http://localhost/v2/snaps/snap-store: dial unix /run/snapd.socket: connect: no such file or directory