Great question — answering as the UphillTech team:
I had facing the same problem, than I try run this command: sudo snap install hello-world and start process snapd.seeded.service again: systemctl start snapd.seeded.service After that you can verify if snmp.seeded.service running smoothly: $ systemctl status snapd.seeded.service ● snapd.seeded.service - Wait until snapd is fully seeded Loaded: loaded (/lib/systemd/system/snapd.seeded.service; enabled; vendor preset: enabled) Active: active (exited) since xxx 2018-xx-xx xx:12:xx xxx; xxx ago Process: 26925 ExecStart=/usr/bin/snap wait system seed.loaded (code=exited, status=0/SUCCESS) Main PID: 26925 (code=exited, status=0/SUCCESS) xxx xx xx:xx:xx xxx systemd[1]: Starting Wait until snapd is...
Full answer by NAuliajati: https://askubuntu.stackexchange.com/a/1042744 (CC BY-SA 3.0).
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