package libreoffice-core 1:3.4.4-0ubuntu2 failed to install/upgrade: subprocess new pre-installation script returned error exit status 1

[Carlex Crespo]

I was running a schedules system update when I've noticed that

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: libreoffice-core 1:3.4.4-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-8.15-generic 3.2.0
Uname: Linux 3.2.0-8-generic i686
ApportVersion: 1.90-0ubuntu1
Architecture: i386
Date: Fri Jan 13 16:47:34 2012
DuplicateSignature:
 Unpacking replacement libreoffice-math ...
 Preparing to replace libreoffice-core 1:3.4.4-0ubuntu2 (using .../libreoffice-core_1%3a3.5.0~beta2-2ubuntu2_i386.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_i386.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 12.04 LTS "Precise Pangolin" - Alpha i386 (20111130.1)
SourcePackage: libreoffice
Title: package libreoffice-core 1:3.4.4-0ubuntu2 failed to install/upgrade: subprocess new pre-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #915861, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.