package install-info 4.13a.dfsg.1-6ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127

[anirudh bhardwaj]

Binary package hint: texinfo

after upgradation to ubuntu 11.04 it is not possible to install anything either from synaptic package manager or even Ubuntu Software Center . Had this error shown while the upgradation was going on which said would face similar problems when the installation of 11.04 was going on ! so now just installation was going on
RELEASE OF UBUNTU > Description: Ubuntu 11.04
Release: 11.04

The version of package >> EVERY PACKAGE

WHAT WAS EXPECTED >> wanted a no problem install like in 10.10 and a no issues .
just as asked the password and seen ok after it now it downloads everything and no installlation happens

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: install-info 4.13a.dfsg.1-6ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
Date: Fri May 6 18:35:42 2011
DpkgTerminalLog:
 Setting up install-info (4.13a.dfsg.1-6ubuntu3) ...
 /etc/environment: line 2: CLASSPATH: command not found
 dpkg: error processing install-info (--configure):
  subprocess installed post-installation script returned error exit status 127
ErrorMessage: subprocess installed post-installation script returned error exit status 127
InstallationMedia: Ubuntu 10.04.2 LTS "Lucid Lynx" - Release i386 (20110211.1)
SourcePackage: texinfo
Title: package install-info 4.13a.dfsg.1-6ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127
UpgradeStatus: Upgraded to natty on 2011-05-04 (1 days ago)

[Maarten Bezemer (veger)]

You seem to have a syntax error in your /etc/environment file at line 2: CLASSPATH: command not found

It should read something like this:
  CLASSPATH="/path/to/your/java/libs/:."

You'll need to manually resolve this issue.

[Marcel Stimberg (marcelstimberg)]

Thank you for your bug report. It appears your file /etc/environment has a syntax error (in line 2):
/etc/environment: line 2: CLASSPATH: command not found
This is something that you have to fix manually. I'm marking the bug as invalid as this is not a bug in texinfo.

Please continue to report any other bug you may find.