package flashplugin-nonfree 10.0.22.87ubuntu1~intrepid1 failed to install/upgrade: subprocess post-installation script returned error exit status 1

Binary package hint: flashplugin-nonfree

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libboost-date-time1.34.1 libboost-thread1.34.1
Use 'apt-get autoremove' to remove them.
Suggested packages:
  konqueror-nsplugins
The following NEW packages will be installed:
  flashplugin-nonfree
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 0B/19.4kB of archives.
After this operation, 168kB of additional disk space will be used.
Preconfiguring packages ...
Selecting previously deselected package flashplugin-nonfree.
(Reading database ... 137557 files and directories currently installed.)
Unpacking flashplugin-nonfree (from .../flashplugin-nonfree_10.0.22.87ubuntu1~intrepid1_amd64.deb) ...
Setting up flashplugin-nonfree (10.0.22.87ubuntu1~intrepid1) ...
Downloading...
--2009-03-01 12:20:40-- http://fpdownload.macromedia.com/get/flashplayer/current/install_flash_player_10_linux.tar.gz
Resolving fpdownload.macromedia.com... 96.6.242.70
Connecting to fpdownload.macromedia.com|96.6.242.70|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 3994294 (3.8M) [application/x-gzip]
Saving to: `./install_flash_player_10_linux.tar.gz'

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2009-03-01 12:20:46 (686 KB/s) - `./install_flash_player_10_linux.tar.gz' saved [3994294/3994294]

Download done.
Flash Plugin installed.
*** NSPlugin Viewer *** ERROR: libnss3.so: wrong ELF class: ELFCLASS64
nspluginwrapper: no appropriate viewer found for /usr/lib/flashplugin-nonfree/libflashplayer.so
dpkg: error processing flashplugin-nonfree (--configure):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 flashplugin-nonfree
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
Architecture: amd64
DistroRelease: Ubuntu 8.10
ErrorMessage: subprocess post-installation script returned error exit status 1
Package: flashplugin-nonfree 10.0.22.87ubuntu1~intrepid1
SourcePackage: flashplugin-nonfree
Title: package flashplugin-nonfree 10.0.22.87ubuntu1~intrepid1 failed to install/upgrade: subprocess post-installation script returned error exit status 1
Uname: Linux 2.6.27-11-generic x86_64