package update-notifier-common 3.160 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127

[un-midas]

Software package is very scary error when doing software updater

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: update-notifier-common 3.160
ProcVersionSignature: Ubuntu 3.19.0-66.74-generic 3.19.8-ckt22
Uname: Linux 3.19.0-66-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.8
Architecture: amd64
Date: Mon Sep 5 03:22:20 2016
DpkgHistoryLog:
 Start-Date: 2016-09-05 03:21:33
 Commandline: aptdaemon role='role-commit-packages' sender=':1.48'
 Install: linux-headers-3.19.0-68:amd64 (3.19.0-68.76), qml-module-qtquick-layouts:amd64 (5.4.1-0ubuntu1, automatic), qml-module-qtquick-window2:amd64 (5.4.1-1ubuntu5, automatic), qml-module-qtquick2:amd64 (5.4.1-1ubuntu5, automatic), libqt5quickwidgets5:amd64 (5.4.1-1ubuntu5), qml-module-qtquick-controls:amd64 (5.4.1-0ubuntu1), linux-image-extra-3.19.0-68-generic:amd64 (3.19.0-68.76), linux-image-3.19.0-68-generic:amd64 (3.19.0-68.76), linux-headers-3.19.0-68-generic:amd64 (3.19.0-68.76), qtdeclarative5-controls-plugin:amd64 (5.4.1-0ubuntu1)
 Upgrade: linux-headers-generic:amd64 (3.19.0.66.64, 3.19.0.68.66), youtube-to-mp3:amd64 (3.8.4, 3.9.8.3-1), linux-libc-dev:amd64 (3.19.0-66.74, 3.19.0-68.76), linux-image-generic:amd64 (3.19.0.66.64, 3.19.0.68.66), linux-generic:amd64 (3.19.0.66.64, 3.19.0.68.66)
DuplicateSignature: package:update-notifier-common:3.160:subprocess installed post-installation script returned error exit status 127
ErrorMessage: subprocess installed post-installation script returned error exit status 127
InstallationDate: Installed on 2015-07-28 (405 days ago)
InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.17.25ubuntu1.1
 apt 1.0.9.7ubuntu4.2
SourcePackage: update-notifier
Title: package update-notifier-common 3.160 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127
UpgradeStatus: No upgrade log present (probably fresh install)

[Steve Langasek (vorlon)]

Thank you for taking the time to report this issue and help to improve Ubuntu.

The file /usr/lib/update-notifier/package-data-downloader belongs to the update-notifier-common package. If this file is missing from your system, you have a corrupt installation.

In addition, your bug report shows that you are running Ubuntu 15.04, which is no longer supported. It is strongly recommended that you upgrade to a supported version of Ubuntu.