I am always getting the below gpg error message. I have also tried adding a PPA from webupd8 but the result is same. How can I resolve this error?
user@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
user@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 1 Answer
I got this error trying to update to Mono 6. I solved it by switching from keyserver.ubuntu.com to keys.gnupg.net in the apt-key command.
