unable to install or uninstall any software

[rohan]

installArchives() failed: Selecting previously deselected package flashplugin-installer.

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(Reading database ... 124382 files and directories currently installed.)

Unpacking flashplugin-installer (from .../flashplugin-installer_11.1.102.55ubuntu0.11.10.1_amd64.deb) ...

Setting up flashplugin-downloader:i386 (11.0.1.152ubuntu1) ...

Downloading...

--2012-01-05 18:00:26-- http://archive.canonical.com/pool/partner/a/adobe-flashplugin/adobe-flashplugin_11.0.1.152.orig.tar.gz

Resolving archive.canonical.com... 91.189.88.33

Connecting to archive.canonical.com|91.189.88.33|:80... connected.

HTTP request sent, awaiting response... 404 Not Found

2012-01-05 18:00:27 ERROR 404: Not Found.

download failed

The Flash plugin is NOT installed.

dpkg: error processing flashplugin-downloader:i386 (--configure):

 subprocess installed post-installation script returned error exit status 1

dpkg: dependency problems prevent configuration of flashplugin-installer:

 flashplugin-installer depends on flashplugin-downloader (>= 11.0.1.152ubuntu1); however:

  Package flashplugin-downloader is not installed.

  Package flashplugin-downloader:i386 is not configured yet.

dpkg: error processing flashplugin-installer (--configure):

 dependency problems - leaving unconfigured

No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:

 flashplugin-downloader:i386

 flashplugin-installer

Error in function:

SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1)

Setting up flashplugin-downloader:i386 (11.0.1.152ubuntu1) ...

Downloading...

--2012-01-05 18:00:28-- http://archive.canonical.com/pool/partner/a/adobe-flashplugin/adobe-flashplugin_11.0.1.152.orig.tar.gz

Resolving archive.canonical.com... 91.189.88.33

Connecting to archive.canonical.com|91.189.88.33|:80... connected.

HTTP request sent, awaiting response... 404 Not Found

2012-01-05 18:00:28 ERROR 404: Not Found.

download failed

The Flash plugin is NOT installed.

dpkg: error processing flashplugin-downloader:i386 (--configure):

 subprocess installed post-installation script returned error exit status 1

dpkg: dependency problems prevent configuration of flashplugin-installer:

 flashplugin-installer depends on flashplugin-downloader (>= 11.0.1.152ubuntu1); however:

  Package flashplugin-downloader is not installed.

  Package flashplugin-downloader:i386 is not configured yet.

dpkg: error processing flashplugin-installer (--configure):

 dependency problems - leaving unconfigured