The Inkscape Stable PPA is intended to provide the current supported release of Inkscape. More info: https://launchpad.net/~inkscape.dev/+archive/ubuntu/stable Press [ENTER] to continue or ctrl-c to cancel adding it gpg: keyring `/tmp/tmpobz1d41p/s

Asked by HBD

The Inkscape Stable PPA is intended to provide the current supported release of Inkscape.
 More info: https://launchpad.net/~inkscape.dev/+archive/ubuntu/stable
Press [ENTER] to continue or ctrl-c to cancel adding it

gpg: keyring `/tmp/tmpobz1d41p/secring.gpg' created
gpg: keyring `/tmp/tmpobz1d41p/pubring.gpg' created
gpg: requesting key B9A06DE3 from hkp server keyserver.ubuntu.com
gpgkeys: key 22C4850146603F3DB0ED00479DA4BD18B9A06DE3 can't be retrieved
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0
gpg: keyserver communications error: keyserver helper general error
gpg: keyserver communications error: unknown pubkey algorithm
gpg: keyserver receive failed: unknown pubkey algorithm
Failed to add key.

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Manfred Hampl (m-hampl) said :
#1

Is this repeatable (i.e. do you see the same error message when issuing the command again - except for a different temp file name)

Which operating system (and version) are you using?
e.g. what is the output of the commands

uname -a
lsb_release -crid
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 9DA4BD18B9A06DE3

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HBD (hbd123) said :
#2

thank you

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