I was trying to install beacon and got this error,
package--check-signature-content: Failed to verify signature: "seq-2.20.tar.sig"
Before installing, I ran package-refresh-content which gave an error about the verification of a public key in *Error*:
Failed to verify signature seq-2.20.tar.sig:
No public key for <some id> created at 2019-09-21T12:54:43-0500 using RSA
Command output:
gpg: Signature made Sat 21 Sep 2019 12:54:43 PM CDT
gpg: using RSA key <some key>
gpg: Can't check signature: No public key
There was also this error in the *Messages* buffer,
Contacting host: elpa.gnu.org:80 [2 times]
Failed to download ‘gnu’ archive.
Here is how my .emacs file's package archives variable looks like,
(setq package-archives '(("gnu" . "http://elpa.gnu.org/packages/")
;; ("marmalade" . "https://marmalade-repo.org/packages/")
("melpa" . "http://melpa.milkbox.net/packages/")))
