the upgrade was stopped at 91%

[Arindam]

i was upgading from 14.04 to 15.04
it stopped at 91%
now i am not able to udpate because of unmet dependencies
breaks:gnome-settings-daemon (<3.10.0) but 3.8.6.1-0ubuntu11.2 is installed

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubuntu-release-upgrader-core 1:15.04.14.3
ProcVersionSignature: Ubuntu 3.19.0-49.55-generic 3.19.8-ckt12
Uname: Linux 3.19.0-49-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.17.2-0ubuntu1.8
Architecture: amd64
CrashDB: ubuntu
Date: Wed Jan 27 09:11:41 2016
InstallationDate: Installed on 2014-07-03 (572 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_IN:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_IN.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to vivid on 2016-01-27 (0 days ago)
VarLogDistupgradeAptlog: Log time: 2016-01-27 09:11:40.727299