package doc-base 0.9.5ubuntu2 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 2

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Binary package hint: doc-base

Ubuntu 11.04 sudo do-release-upgrade -d returne the error

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: doc-base 0.9.5ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: fglrx
Architecture: i386
CheckboxSubmission: 4a1e63ac330db678499c6b784f6150c6
CheckboxSystem: 090f50ffa15f2babaae2e4e2bf775960
Date: Sun Jun 12 02:44:35 2011
ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 2
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
PackageArchitecture: all
SourcePackage: doc-base
Title: package doc-base 0.9.5ubuntu2 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: Upgraded to natty on 2011-06-11 (0 days ago)