package gunicorn 17.5-2build1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Khashayar]

when restart gunicorn service , Occurred this exeception

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: gunicorn 17.5-2build1
ProcVersionSignature: Ubuntu 3.16.0-55.74~14.04.1-generic 3.16.7-ckt19
Uname: Linux 3.16.0-55-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
AptOrdering:
 gunicorn: Install
 gunicorn: Configure
Architecture: amd64
Date: Thu Dec 31 03:28:50 2015
DuplicateSignature: package:gunicorn:17.5-2build1:subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2015-04-01 (273 days ago)
InstallationMedia: Lubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.5
 apt 1.0.1ubuntu2.10
SourcePackage: gunicorn
Title: package gunicorn 17.5-2build1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Corey Bryant (corey.bryant)]

Hi Khashayar,

Are you are still hitting this? Please feel free to open back to New status if you are.

Thanks,
Corey

[Launchpad Janitor (janitor)]

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