package shared-mime-info 1.2-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Matt Keenan]

sed -e 's/precise/trusty/' on /etc/apt/sources.list
apt-get update
apt-get -u dist-upgrade

this was the result

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: shared-mime-info 1.2-0ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
Uname: Linux 3.13.0-17-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
Date: Fri Mar 14 16:19:30 2014
DuplicateSignature: package:shared-mime-info:1.2-0ubuntu2:subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
SourcePackage: shared-mime-info
Title: package shared-mime-info 1.2-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)