package chromium-browser 5.0.375.99~r51029-0ubuntu0.10.04.1 failed to install/upgrade: package chromium-browser is already installed and configured

[kausik]

Binary package hint: dpkg

(Reading database ... 55%dpkg: unrecoverable fatal error, aborting:
 failed in buffer_read(fd): files list for package `d4x': Is a directory
E: Sub-process /usr/bin/dpkg returned an error code (2)

ALL THESE ERRORS ARE COMMING AFTER THIS

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: chromium-browser 5.0.375.99~r51029-0ubuntu0.10.04.1
ProcVersionSignature: Ubuntu 2.6.32-24.39-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
Architecture: i386
Date: Sat Aug 21 17:49:00 2010
ErrorMessage: package chromium-browser is already installed and configured
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
SourcePackage: dpkg
Title: package chromium-browser 5.0.375.99~r51029-0ubuntu0.10.04.1 failed to install/upgrade: package chromium-browser is already installed and configured