package nginx-core (not installed) failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Salvador Pasquier]

I says it cannot install dependencies, I try to install dependencies (nginx-core, nginx-common, nginx-full, etc.) but I can't install them because of the same error.

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: nginx-core (not installed)
ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
Uname: Linux 4.2.0-19-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
Date: Fri Dec 4 09:14:38 2015
DuplicateSignature: package:nginx-core:(not installed):subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2015-12-03 (0 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
RelatedPackageVersions:
 dpkg 1.18.2ubuntu5.1
 apt 1.0.10.2ubuntu1
SourcePackage: nginx
Title: package nginx-core (not installed) failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Thomas Ward (teward)]

What was the exact command you ran? `nginx-core` and `nginx-full` can't run together, they're conflicting packages. YOu can only use `nginx-core` OR `nginx-full` OR `nginx-light` OR `nginx-extras` - you can't use them all together.

[Launchpad Janitor (janitor)]

[Expired for nginx (Ubuntu) because there has been no activity for 60 days.]

[zarej (zarej-svrljig)]

I was unable to install nginx package if port 80 was opened. I need to free port 80 in order to install nginx.

[Thomas Ward (teward)]

zarej, refer to Bug 1512344 - this is a known problem but it's not something that's able to be fixed.

[x (xtxrx)]

After getting this I found out that I had apache2 running.
Stopped apache2, purged all apache2 and nginx files.
Did autoclean and autoremove. Then installed with apt-get install nginx.
Succeeded.