package postgresql-client-9.5 9.5.4-0ubuntu0.16.04 failed to install/upgrade: подпроцесс установлен сценарий pre-removal возвратил код ошибки 2

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ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: postgresql-client-9.5 9.5.4-0ubuntu0.16.04
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
AptOrdering:
 postgresql-client-9.5: Purge
 postgresql-client-common: Purge
 NULL: ConfigurePending
Architecture: amd64
Date: Fri Sep 9 12:52:05 2016
ErrorMessage: подпроцесс установлен сценарий pre-removal возвратил код ошибки 2
InstallationDate: Installed on 2016-09-05 (3 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: postgresql-9.5
Title: package postgresql-client-9.5 9.5.4-0ubuntu0.16.04 failed to install/upgrade: подпроцесс установлен сценарий pre-removal возвратил код ошибки 2
UpgradeStatus: No upgrade log present (probably fresh install)