package libsane (not installed) failed to install/upgrade: a tentar sobreescrever '/etc/sane.d/v4l.conf' partilhado, que é diferente de outras instâncias do pacote libsane:amd64

Distro Ubuntu 14.04
sane-utils 1.0.23-3ubuntu3.1

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libsane (not installed)
ProcVersionSignature: Ubuntu 3.13.0-46.79-generic 3.13.11-ckt15
Uname: Linux 3.13.0-46-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
Date: Sat Mar 14 13:13:34 2015
DuplicateSignature: package:libsane:(not installed):a tentar sobreescrever '/etc/sane.d/v4l.conf' partilhado, que é diferente de outras instâncias do pacote libsane:amd64
ErrorMessage: a tentar sobreescrever '/etc/sane.d/v4l.conf' partilhado, que é diferente de outras instâncias do pacote libsane:amd64
InstallationDate: Installed on 2014-09-07 (188 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
SourcePackage: sane-backends
Title: package libsane (not installed) failed to install/upgrade: a tentar sobreescrever '/etc/sane.d/v4l.conf' partilhado, que é diferente de outras instâncias do pacote libsane:amd64
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.sane.d.dll.conf: 2014-09-13T14:27:12.091622