package libqtwebkit4 2.2~2011week27-0ubuntu2 failed to install/upgrade: short read on buffer copy for backend dpkg-deb during `./usr/lib/x86_64-linux-gnu/libQtWebKit.so.4.9.0'

Unpacking replacement libqtwebkit4 ...
xz: (stdin): Compressed data is corrupt
dpkg-deb: error: subprocess <decompress> returned error exit status 1
dpkg: error processing /var/cache/apt/archives/libqtwebkit4_2.2~2011week34-0ubuntu1_amd64.deb (--unpack):
 short read on buffer copy for backend dpkg-deb during `./usr/lib/x86_64-linux-gnu/libQtWebKit.so.4.9.0'
Preparing to replace libumfpack5.4.0 1:3.4.0-2ubuntu2 (using .../libumfpack5.4.0_1%3a3.4.0-2ubuntu3_amd64.deb) ...
Unpacking replacement libumfpack5.4.0 ...
Processing triggers for man-db ...
debconf: unable to initialize frontend: Dialog
debconf: (Dialog frontend requires a screen at least 13 lines tall and 31 columns wide.)
debconf: falling back to frontend: Readline
Processing triggers for hicolor-icon-theme ...
Processing triggers for gconf2 ...
Errors were encountered while processing:
 /var/cache/apt/archives/libqtwebkit4_2.2~2011week34-0ubuntu1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 11.10
Package: libqtwebkit4 2.2~2011week27-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
Uname: Linux 3.0.0-10-generic x86_64
ApportVersion: 1.22.1-0ubuntu2
Architecture: amd64
Date: Sun Sep 11 10:03:24 2011
DuplicateSignature:
 Unpacking replacement libqtwebkit4 ...
 xz: (stdin): Compressed data is corrupt
 dpkg-deb: error: subprocess <decompress> returned error exit status 1
 dpkg: error processing /var/cache/apt/archives/libqtwebkit4_2.2~2011week34-0ubuntu1_amd64.deb (--unpack):
  short read on buffer copy for backend dpkg-deb during `./usr/lib/x86_64-linux-gnu/libQtWebKit.so.4.9.0'
ErrorMessage: short read on buffer copy for backend dpkg-deb during `./usr/lib/x86_64-linux-gnu/libQtWebKit.so.4.9.0'
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
SourcePackage: qtwebkit-source
Title: package libqtwebkit4 2.2~2011week27-0ubuntu2 failed to install/upgrade: short read on buffer copy for backend dpkg-deb during `./usr/lib/x86_64-linux-gnu/libQtWebKit.so.4.9.0'
UpgradeStatus: Upgraded to oneiric on 2011-08-27 (14 days ago)