Eu sempre recebo mensagem de erro gpg como abaixo, e não apenas Spotify Eu também tentei adicionar webupd8 PPA, mas o resultado é o mesmo. por favor me ajude.
deda@work:~$ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 0DF731E45CE24F27EEEB1450EFDC8610341D9410
Executing: /tmp/apt-key-gpghome.VlEePwgr6J/gpg.1.sh --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 0DF731E45CE24F27EEEB1450EFDC8610341D9410
gpg: keyserver receive failed: No keyserver available
deda@work:~$
deda@work:~$ sudo apt-key adv -vv --keyserver hkp://keyserver.ubuntu.com:80/ --recv-keys 0DF731E45CE24F27EEEB1450EFDC8610341D9410
[sudo] password for deda:
Executing: /tmp/apt-key-gpghome.Z1cpSvPrvA/gpg.1.sh -vv --keyserver hkp://keyserver.ubuntu.com:80/ --recv-keys 0DF731E45CE24F27EEEB1450EFDC8610341D9410
gpg: no running Dirmngr - starting '/usr/bin/dirmngr'
gpg: waiting for the dirmngr to come up ... (5s)
gpg: connection to the dirmngr established
gpg: keyserver receive failed: No keyserver available