Software Center doesn't open at all in Ubuntu 13.10

[Abhinay]

I have updated to Ubuntu 13.10 from 13.04 and after the update, software center doesn't open at all.. When I click on the icon, it blinks a few times and nothing happens.

I typed the "Software-center" command in the terminal and this is what i got:

software-center
2013-07-15 00:54:58,169 - softwarecenter.ui.gtk3.app - INFO - setting up proxy 'None'
Traceback (most recent call last):
  File "/usr/bin/software-center", line 130, in <module>
    app = SoftwareCenterAppGtk3(options, args)
  File "/usr/share/software-center/softwarecenter/ui/gtk3/app.py", line 429, in __init__
    self.useful_cache = UsefulnessCache(True)
  File "/usr/share/software-center/softwarecenter/backend/reviews/__init__.py", line 91, in __init__
    self._retrieve_votes_from_server()
  File "/usr/share/software-center/softwarecenter/backend/reviews/__init__.py", line 105, in _retrieve_votes_from_server
    user = get_person_from_config()
  File "/usr/share/software-center/softwarecenter/utils.py", line 638, in get_person_from_config
    cfg = get_config()
  File "/usr/share/software-center/softwarecenter/config.py", line 180, in get_config
    _software_center_config = SoftwareCenterConfig(filename)
  File "/usr/share/software-center/softwarecenter/config.py", line 38, in __init__
    super(SoftwareCenterConfig, self).__init__()
TypeError: must be type, not classobj

Release of Ubuntu being used : Ubuntu 13.10

Version of the package : apt-cache policy software-center
software-center:
  Installed: 13.05-0ubuntu2
  Candidate: 13.05-0ubuntu2
  Version table:
 *** 13.05-0ubuntu2 0
        500 http://archive.ubuntu.com/ubuntu/ saucy/main amd64 Packages
        100 /var/lib/dpkg/status
W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ saucy/restricted amd64 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_saucy_restricted_binary-amd64_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ saucy/restricted i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_saucy_restricted_binary-i386_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ saucy-updates/restricted amd64 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_saucy-updates_restricted_binary-amd64_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ saucy-updates/restricted i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_saucy-updates_restricted_binary-i386_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ saucy-backports/restricted amd64 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_saucy-backports_restricted_binary-amd64_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ saucy-backports/multiverse amd64 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_saucy-backports_multiverse_binary-amd64_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ saucy-backports/restricted i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_saucy-backports_restricted_binary-i386_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ saucy-backports/multiverse i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_saucy-backports_multiverse_binary-i386_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ saucy-security/restricted amd64 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_saucy-security_restricted_binary-amd64_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ saucy-security/restricted i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_saucy-security_restricted_binary-i386_Packages)
W: You may want to run apt-get update to correct these problems

What I expected to happen : Software center to open

What happened instead : nothing.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: software-center 13.05-0ubuntu2
ProcVersionSignature: Ubuntu 3.8.0-27.40-generic 3.8.13.4
Uname: Linux 3.8.0-27-generic x86_64
ApportVersion: 2.10.2-0ubuntu4
Architecture: amd64
Date: Mon Jul 15 00:49:19 2013
InstallationDate: Installed on 2013-07-14 (0 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: software-center
UpgradeStatus: Upgraded to saucy on 2013-07-14 (0 days ago)

[Abhinay (abhinaym)]

This no longer affects me, I ran an update and everything works fine now.!

[Michael Murphy (mmstick)]

Darn it, I have this problem. Update doesnt help.

[Launchpad Janitor (janitor)]

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

[glenn van acker (vanackerglenn)]

this also affected me in 13.04, but doing an apt-get update is only going to refresh your package list. for those of you who only tried that, try doing a sudo apt-get upgrade. that fixed it with me. i don't really know much about those packages, but it seemed to me like one of the files from the front-end was corrupted..

[Gerelt (gerelt)]

I have same problem. somebody can explain how use it: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/1201168/+attachment/3736770/+files/Dependencies.txt ??

[Angel Mass (angelmass)]

Found a solution, just enter this in the console:

sudo apt-get install --reinstall software-center

Wait for the reinstallation to finish and then try running it again.

[Martin Francis (jahrulez)]

the above solutions did not work for me what worked was

sudo apt-get update