Letsencrypt Certbot error [closed]
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I'm trying to generate a certificate on a Digital Ocean droplet running Ubuntu 12.04 following this guide: https://certbot.eff.org/#ubuntuother-other I see the following error: ./certbot-auto certonly ... Creating virtual environment... Installing Python packages... ... copying src/cryptography/hazmat/backends