latest update to lxpanel does not install correctly

[Lyn Perrine]

Launch update manager and run updates and it will find updates on vivid. Then wait for the latest update to lxpanel and watch what happens. dpkg will not unpack lxpanel and several related pacakges to install.

lxpanel:
  Installed: 0.7.2-1ubuntu1
  Candidate: 0.7.2-1ubuntu1
  Version table:
 *** 0.7.2-1ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ vivid/universe amd64 Packages
        100 /var/lib/dpkg/status
Description: Ubuntu Vivid Vervet (development branch)
Release: 15.04
update-manager:
  Installed: 1:15.04.1
  Candidate: 1:15.04.1
  Version table:
 *** 1:15.04.1 0
        500 http://us.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages
        100 /var/lib/dpkg/status
I expected lxpanel to install instead it failed to install.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: lxpanel 0.7.2-1ubuntu1
ProcVersionSignature: Ubuntu 3.18.0-12.13-generic 3.18.4
Uname: Linux 3.18.0-12-generic x86_64
ApportVersion: 2.15.1-0ubuntu4
Architecture: amd64
Config_System_default: Error: [Errno 2] No such file or directory: '/usr/share/lxpanel/profile/default/config'
Date: Mon Feb 2 10:00:46 2015
InstallationDate: Installed on 2014-09-30 (124 days ago)
InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140930)
Panel_System_default: Error: [Errno 2] No such file or directory: '/usr/share/lxpanel/profile/default/panels/panel'
SourcePackage: lxpanel
UpgradeStatus: Upgraded to vivid on 2014-12-12 (51 days ago)
modified.conffile..etc.xdg.lxpanel.default.config: [deleted]
modified.conffile..etc.xdg.lxpanel.default.panels.panel: [deleted]
modified.conffile..etc.xdg.lxpanel.two.panels.config: [deleted]
modified.conffile..etc.xdg.lxpanel.two.panels.panels.bottom: [deleted]
modified.conffile..etc.xdg.lxpanel.two.panels.panels.top: [deleted]

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.