Synaptic is not opening

[Md Ashickur Rahman]

When I try to start synaptic it comes

(synaptic:23363): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(synaptic:23363): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(synaptic:23363): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",

(synaptic:23363): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
terminate called after throwing an instance of 'std::out_of_range'
  what(): vector::_M_range_check

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: synaptic 0.75.2ubuntu8
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Mon Jan 2 16:54:05 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: synaptic
UpgradeStatus: No upgrade log present (probably fresh install)

[Hans Joachim Desserud (hjd)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 607605, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.