Comment 0 for bug 1346916

I try open the Software Center, but I cant do it. His freeze in grey screen. Using a command sudo software-center, this comment shows:

gabriel@FLUXBI:~$ sudo software-center
[sudo] password for gabriel:
No protocol specified
No protocol specified

** (software-center:19840): WARNING **: A linha de comandos "dbus-launch --autolaunch=06f2fe5781321b9d89e9c47700000007 --binary-syntax --close-stderr" saiu com status de saída não-zero, 1: No protocol specified\nNo protocol specified\nAutolaunch error: X11 initialization failed.\n
Traceback (most recent call last):
  File "/usr/bin/software-center", line 25, in <module>
    from gi.repository import Gtk, GObject
  File "/usr/lib/python2.7/dist-packages/gi/importer.py", line 76, in load_module
    dynamic_module._load()
  File "/usr/lib/python2.7/dist-packages/gi/module.py", line 224, in _load
    overrides_modules = __import__('gi.overrides', fromlist=[self._namespace])
  File "/usr/lib/python2.7/dist-packages/gi/overrides/Gtk.py", line 1533, in <module>
    raise RuntimeError("Gtk couldn't be initialized")
RuntimeError: Gtk couldn't be initialized
gabriel@FLUXBI:~$

Anybody can help me?

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: software-center 5.2.10
ProcVersionSignature: Ubuntu 3.2.0-64.97-generic-pae 3.2.59
Uname: Linux 3.2.0-64-generic-pae i686
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
Date: Tue Jul 22 10:33:25 2014
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=pt_BR:pt:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
SourcePackage: software-center
UpgradeStatus: No upgrade log present (probably fresh install)