package install-info 5.2.0.dfsg.1-2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[jaybobc]

I was trying to install dependencies for texinfo when I received this error. The following is my information:

1) release: Ubuntu 14.04.3 LTS
2) install-info package version - 5.2.0.dfsg.1-2
3) I expected it to install without error
4) I received the error, "package install-info 5.2.0.dfsg.1-2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2"

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: install-info 5.2.0.dfsg.1-2
ProcVersionSignature: Ubuntu 3.19.0-31.36~14.04.1-generic 3.19.8-ckt7
Uname: Linux 3.19.0-31-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.18
Architecture: amd64
Date: Wed Nov 4 17:06:37 2015
DuplicateSignature: package:install-info:5.2.0.dfsg.1-2:subprocess installed post-installation script returned error exit status 2
ErrorMessage: subprocess installed post-installation script returned error exit status 2
InstallationDate: Installed on 2015-09-05 (60 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.4
 apt 1.0.1ubuntu2.10
SourcePackage: texinfo
Title: package install-info 5.2.0.dfsg.1-2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)

[claus2011 (mjo-cjo)]

I have received exactly the same error message, same Bug #1513260, when I tried to update Lubuntu 14.4.
A few weeks before I had edited the file /etc/environment and added another line. Now I undid this change, so that only one line with the path remained in the file /etc/environment. After this change I could update Lubuntu whithout problem.
Maybe this can help you.