package ocaml-base-nox 3.12.1-2ubuntu2 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1

[Ben Bolker]

upgrading from 10.04 to 12.04 (can't think of other particularly helpful details, sorry)

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: ocaml-base-nox 3.12.1-2ubuntu2
ProcVersionSignature: Ubuntu 2.6.32-42.95-generic 2.6.32.59+drm33.24
Uname: Linux 2.6.32-42-generic i686
ApportVersion: 2.0.1-0ubuntu14
Architecture: i386
Date: Fri Nov 2 15:49:09 2012
ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
SourcePackage: ocaml
Title: package ocaml-base-nox 3.12.1-2ubuntu2 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to precise on 2012-11-02 (0 days ago)