package libreoffice-core (not installed) failed to install/upgrade: subprocess new pre-installation script returned error exit status 1

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ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: libreoffice-core (not installed)
ProcVersionSignature: Ubuntu 3.2.0-7.13-generic 3.2.0-rc7
Uname: Linux 3.2.0-7-generic x86_64
ApportVersion: 1.90-0ubuntu1
Architecture: amd64
Date: Fri Jan 13 21:45:49 2012
DpkgTerminalLog:
 Preparing to replace libreoffice-core 1:3.4.4-0ubuntu2 (using .../libreoffice-core_1%3a3.5.0~beta2-2ubuntu2_amd64.deb) ...
 rmdir: failed to remove `usr/lib/libreoffice/basis3.4/program/': Directory not empty
 dpkg: error processing /var/cache/apt/archives/libreoffice-core_1%3a3.5.0~beta2-2ubuntu2_amd64.deb (--unpack):
  subprocess new pre-installation script returned error exit status 1
ErrorMessage: subprocess new pre-installation script returned error exit status 1
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
SourcePackage: libreoffice
Title: package libreoffice-core (not installed) failed to install/upgrade: subprocess new pre-installation script returned error exit status 1
UpgradeStatus: Upgraded to precise on 2012-01-13 (0 days ago)