package flashplugin-installer 11.1.102.55ubuntu0.11.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[Rock]

during upgrade it failed, it really took long time before it crashed roughly near 70% when it failed.

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: flashplugin-installer 11.1.102.55ubuntu0.11.04.1
ProcVersionSignature: Ubuntu 2.6.38-12.51-generic 2.6.38.8
Uname: Linux 2.6.38-12-generic x86_64
AptOrdering:
 flashplugin-installer: Install
 vim: Configure
 flashplugin-installer: Configure
Architecture: amd64
Date: Sat Nov 12 09:31:51 2011
ErrorMessage: subprocess installed post-installation script returned error exit status 2
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
SourcePackage: flashplugin-nonfree
Title: package flashplugin-installer 11.1.102.55ubuntu0.11.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)

[dino99 (9d9)]

That distro have reached EOL since a while; and such problem has been resolved long time ago.