Please see Apport's automatically generated files (attached)
ProblemType: RecoverableProblem
DistroRelease: Ubuntu 15.04
Package: upstart 1.13.2-0ubuntu13
ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
Uname: Linux 3.19.0-16-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Thu May 7 19:03:35 2015
DuplicateSignature: /sbin/upstart:indicator-session-unknown-user-error
ExecutablePath: /sbin/upstart
InstallationDate: Installed on 2011-12-08 (1246 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcCmdline: /sbin/upstart --user
SourcePackage: upstart
UpgradeStatus: Upgraded to vivid on 2015-04-24 (13 days ago)
UpstartBugCategory: Session
UpstartRunningSessionCount: 1
UpstartRunningSessionVersion: upstart 1.13.2
UpstartRunningSystemVersion: Error: command ['initctl', '--system', 'version'] failed with exit code 1: initctl: Name "com.ubuntu.Upstart" does not exist
UserGroups: adm admin avahi avahi-autoipd cdrom dialout dip fax floppy fuse lp lpadmin mythtv plugdev sambashare tape users video whoopsie www-data
icon_file: (null)
is_current_user: false
is_logged_in: false
real_name: (null)
uid: 0
upstart.upstart-event-bridge.log: upstart-event-bridge: Could not connect to system Upstart: Failed to connect to socket /com/ubuntu/upstart/local/bridge: Connection refused
user_name: (null)
Status changed to 'Confirmed' because the bug affects multiple users.