<pre>sudo apt -f remove nginx-core
[sudo] password for alson:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package 'nginx-core' is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up nginx-full (1.10.3-0ubuntu0.16.04.2) ...
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.
● 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 Jum 2017-09-22 16:13:20 WIB; 14ms ago
  Process: 7194 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=1/FAILURE)

Sep 22 16:13:20 Alson systemd[1]: Starting A high performance web server an.....
Sep 22 16:13:20 Alson nginx[7194]: nginx: [emerg] open() "/etc/nginx/nginx....y)
Sep 22 16:13:20 Alson nginx[7194]: nginx: configuration file /etc/nginx/ngi...ed
Sep 22 16:13:20 Alson systemd[1]: nginx.service: Control process exited, co...=1
Sep 22 16:13:20 Alson systemd[1]: Failed to start A high performance web se...r.
Sep 22 16:13:20 Alson systemd[1]: nginx.service: Unit entered failed state.
Sep 22 16:13:20 Alson systemd[1]: nginx.service: Failed with result 'exit-code'.
Hint: Some lines were ellipsized, use -l to show in full.
dpkg: error processing package nginx-full (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 nginx-full
E: Sub-process /usr/bin/dpkg returned an error code (1)</pre>