package flashplugin-downloader 11.0.1.152ubuntu1 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1

[Caspar Jordan]

As a consequence I could not upgrade to 11.10.

ProblemType: Package
DistroRelease: Ubuntu 11.10
Package: flashplugin-downloader 11.0.1.152ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Mon Oct 17 14:34:20 2011
ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
SourcePackage: flashplugin-nonfree
Title: package flashplugin-downloader 11.0.1.152ubuntu1 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to oneiric on 2011-10-17 (0 days ago)