OSTechNix published a tutorial about fixing “gpg: keyserver receive failed: No dirmngr” error.
How To Fix "gpg: keyserver receive failed: No dirmngr" Error - OSTechNix
One of our reader faced this error while installing Katoolin3- gpg: keyserver receive failed: No dirmngr. This error occurs because of missing dirmngr.
How To Fix "gpg: keyserver receive failed: No dirmngr" Error - OSTechNix