Parrot Sphinx without success installing on Ubuntu 18.04.3 LTS

Parrot Sphinx without success installing on Ubuntu 18.04.3 LTS

echo “deb http://plf.parrot.com/sphinx/binary lsb_release -cs/” | sudo tee /etc/apt/sources.list.d/sphinx.list > /dev/null
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 508B1AE5
sudo apt-get update
sudo apt-get install parrot-sphinx

gpg: connecting dirmngr at ‘/tmp/apt-key-gpghome.TFWMozPHZ4/S.dirmngr’ failed: IPC connect call failed
gpg: keyserver receive failed: No dirmngr

Some hints are welcome.

Thx in advance, Willi

Could you try with another public PGP key server instead of keyserver.ubuntu.com? For example: pgp.mit.edu or keys.gnupg.net

Thank you for the hint. Tried both but nothing changed ;-(

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 508B1AE5

sudo apt-key adv --keyserver keys.gnupg.net --recv-keys 508B1AE5

Tried a lot of things. The only thing that helped on my Linux installation was …

Manually download the key and add it.

http://keyserver.ubuntu.com/pks/lookup?search=0x508B1AE5&op=get

copy and paste the content to a file called key.txt

nano kex.txt

sudo apt-key add key.txt

sudo apt-get update

This issue seems to be specific to my Linux system and has nothing todo with the Parrot Sphinx.