package transmission-daemon 2.84-0ubuntu0.14.10.1 failed to install/upgrade: subprocess new pre-installation script returned error exit status 1

happened during upgrade from 14.10 to 15.04

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: transmission-daemon 2.84-0ubuntu0.14.10.1
ProcVersionSignature: Ubuntu 3.16.0-28.38-generic 3.16.7-ckt1
Uname: Linux 3.16.0-28-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.4
Architecture: amd64
Date: Sun Apr 26 17:07:23 2015
DuplicateSignature: package:transmission-daemon:2.84-0ubuntu0.14.10.1:subprocess new pre-installation script returned error exit status 1
ErrorMessage: subprocess new pre-installation script returned error exit status 1
InstallationDate: Installed on 2014-11-06 (171 days ago)
InstallationMedia: Ubuntu-Server 14.10 "Utopic Unicorn" - Release amd64 (20141022.2)
SourcePackage: transmission
Title: package transmission-daemon 2.84-0ubuntu0.14.10.1 failed to install/upgrade: subprocess new pre-installation script returned error exit status 1
UpgradeStatus: Upgraded to vivid on 2015-04-27 (0 days ago)
modified.conffile..etc.init.transmission.daemon.conf: [modified]
modified.conffile..etc.transmission.daemon.settings.json: [modified]
mtime.conffile..etc.init.d.transmission.daemon: 2014-11-09T10:04:29.341677
mtime.conffile..etc.init.transmission.daemon.conf: 2014-11-09T10:06:41.701680
mtime.conffile..etc.transmission.daemon.settings.json: 2015-04-26T17:07:23.494142