Nginx not starting after installed [emerg] open() "/etc/nginx/nginx.conf" failed (2: No such file

Question

Right after installing Nginx on Ubuntu, it's not starting. I've no idea what's happening. I tried created nginx.conf by myself but no changed happened

    ● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Fri 2021-01-08 15:12:18 UTC; 1min 49s ago
     Docs: man:nginx(8)

Jan 08 15:12:18 root systemd[1]: Starting A high performance web server and a reverse proxy server...
Jan 08 15:12:18 root nginx[3367]: nginx: [emerg] open() "/etc/nginx/nginx.conf" failed (2: No such file or d
Jan 08 15:12:18 root nginx[3367]: nginx: configuration file /etc/nginx/nginx.conf test failed
Jan 08 15:12:18 root systemd[1]: nginx.service: Control process exited, code=exited status=1
Jan 08 15:12:18 root systemd[1]: nginx.service: Failed with result 'exit-code'.
Jan 08 15:12:18 root systemd[1]: Failed to start A high performance web server and a reverse proxy server.

Answer 1

I have no idea but it works after I've copied nginx.conf and mime.types inside /etc/nginx from this link. Thank you @Daniel Mesa