package lsb-base 4.0-0ubuntu8 failed to install/upgrade: el subproceso script pre-installation nuevo devolvió el código de salida de error 127

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I was trying to upgrade from Ubuntu10 to Xubuntu12.
It failed to find some lib packs
Finally it found Error 127
I tried sudo apt-get update to see if it would find the lost packs

I'd appreciate if you could supply some instructions for me to upgrade the system since I can not even use a proper web browse.
I am an absolute beginner at on Linux.
Thanks in advance

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: lsb-base 4.0-0ubuntu8
ProcVersionSignature: Ubuntu 2.6.32-33.70-generic 2.6.32.41+drm33.18
Uname: Linux 2.6.32-33-generic i686
Architecture: i386
Date: Wed Sep 13 15:44:00 2017
ErrorMessage: el subproceso script pre-installation nuevo devolvió el código de salida de error 127
InstallationMedia: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release i386 (20110720.1)
PackageArchitecture: all
SourcePackage: lsb
Title: package lsb-base 4.0-0ubuntu8 failed to install/upgrade: el subproceso script pre-installation nuevo devolvió el código de salida de error 127