Tried following instructions from https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-ubuntu-14-04-lts

Jan 23 02:32:54 reasonstodothings nginx[16285]: nginx: [emerg] listen() to [::]:80, backlog 511 failed (98: Address already in use)
Jan 23 02:32:54 reasonstodothings nginx[16285]: nginx: [emerg] listen() to 0.0.0.0:80, backlog 511 failed (98: Address already in use)
Jan 23 02:32:54 reasonstodothings nginx[16285]: nginx: [emerg] listen() to [::]:80, backlog 511 failed (98: Address already in use)
Jan 23 02:32:55 reasonstodothings nginx[16285]: nginx: [emerg] listen() to 0.0.0.0:80, backlog 511 failed (98: Address already in use)
Jan 23 02:32:55 reasonstodothings nginx[16285]: nginx: [emerg] listen() to [::]:80, backlog 511 failed (98: Address already in use)
Jan 23 02:32:55 reasonstodothings nginx[16285]: nginx: [emerg] still could not bind()
Jan 23 02:32:55 reasonstodothings systemd[1]: nginx.service: Control process exited, code=exited status=1
Jan 23 02:32:55 reasonstodothings systemd[1]: Failed to start A high performance web server and a reverse proxy server.
Jan 23 02:32:55 reasonstodothings systemd[1]: nginx.service: Unit entered failed state.
Jan 23 02:32:55 reasonstodothings systemd[1]: nginx.service: Failed with result 'exit-code'.
dpkg: error processing package nginx-core (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of nginx:
 nginx depends on nginx-core (>= 1.10.3-0ubuntu0.16.04.2) | nginx-full (>= 1.10.3-0ubuntu0.16.04.2) | nginx-light (>= 1.10.3-0ubuntu0.16.04.2) | nginx-extras (>= 1.10.3-0ubuntu0.16.04.2); 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 (<< 1.10.3-0ubuntu0.16.04.2.1~) | nginx-full (<< 1.10.3-0ubuntu0.16.04.2.1~) | nginx-light (<< 1.10.3-0ubuntu0.16.04.2.1~) | nginx-extras (<< 1.10.3-0ubuntu0.16.04.2.1~); 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
No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                          Errors were encountered while processing:
 nginx-core
 nginx
E: Sub-process /usr/bin/dpkg returned an error code (1)