Why can't I install nginx?

Question

Nginx

The VPS is running Ubuntu Server 16.04. I'm trying to install Nginx like this:

sudo apt-get update
sudo apt-get install nginx

The console says:
Job for nginx.service failed because the control process exited with error code. See "systemctl status nginx.service" and "journalctl -xe" for details.
invoke-rc.d: initscript nginx, action "start" failed.
dpkg: error processing package nginx-core (--configure): subprocess installed
post-installation script returned error exit status 1 .4) | nginx-full (>= 1.10.0-0ubuntu0.16.04.4) | nginx-light (>= 1.10.0-0ubuntu0.16.04.4) | nginx-extras (>= 1.10.0-0ubuntu0.16.04.4); however: Package nginx-core is not configured yet. Package nginx-full is not installed.
Package nginx-light is not installed.
Package nginx-extras is not installed.
nginx depends on nginx-core (<< 1.10.0-0ubuntu0.16.04.4.1~) | nginx-full (<< 1.10.0-0ubuntu0.16.04.4.1~) | nginx-light (<< 1.10.0-0ubuntu0.16.04.4.1~) | nginx-extras (<< 1.10.0-0ubuntu0.16.04.4.1~); however:
Package nginx-core is not configured yet.
Package nginx-full is not installed.
Package nginx-light is not installed.
Package nginx-extras is not installed.
dpkg: error processing package nginx (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
nginx-core
nginx
E: Sub-process /usr/bin/dpkg returned an error code (1)
How to fix?