package base-files 5.0.0ubuntu20.10.04.1 failed to install/upgrade: cannot access archive: No such file or directory

Binary package hint: base-files

I am installing updates.

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: base-files 5.0.0ubuntu20.10.04.1
ProcVersionSignature: Ubuntu 2.6.32-24.38-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
Architecture: i386
Date: Mon Sep 20 15:39:38 2010
DpkgTerminalLog:
 Log started: 2010-09-20 15:39:38
 dpkg: error processing /var/cache/apt/archives/base-files_5.0.0ubuntu20.10.04.2_i386.deb (--unpack):
  cannot access archive: No such file or directory
ErrorMessage: cannot access archive: No such file or directory
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
SourcePackage: base-files
Title: package base-files 5.0.0ubuntu20.10.04.1 failed to install/upgrade: cannot access archive: No such file or directory