Emacs: Gagal memverifikasi signature signature-content.sig

Baru-baru ini mencoba memperbarui paket emacs dan mendapatkannya. Failed to verify signature archive-contents.sig: No public key for 066DAFCB81E42C40 created at 2019-10-02T10:10:02+0100 using RSA Command output: gpg: Signature made Wed 02 Oct 2019 10:10:02 AM BST gpg: using RSA key...