Comment 0 for bug 1227277

I downloaded Ubuntu 13.10 32bit daily build. I installed it on newly created filesystem. I updated it via sudo apt-get update sudo apt-get dist-upgrade. I added to /etc/apt/sources.list.d/ddebs.list link to debug symbols. I updated and upgraded. I installed apport-retrace and suggested packages. I restarted system. I downloaded .deb file of steam from official valve page. I wanted to install steam, so I clicked on .deb, then I confirmed that deb is trustworthly, and it is the point where crash occured. But window of software-center there is still visible and I could continue the installation.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: software-center 13.09-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-7.14-generic 3.11.1
Uname: Linux 3.11.0-7-generic i686
ApportVersion: 2.12.2-0ubuntu1
Architecture: i386
Date: Wed Sep 18 19:53:09 2013
ExecutablePath: /usr/share/software-center/software-center
InstallationDate: Installed on 2013-09-18 (0 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130917)
InterpreterPath: /usr/bin/python2.7
MarkForUpload: True
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-center /home/username/Pulpit/steam_latest.deb
ProcEnviron:
 LANGUAGE=pl
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/software-center', '/home/username/Pulpit/steam_latest.deb']
SourcePackage: software-center
Title: software-center crashed with TypeError in exists(): coercing to Unicode: need string or buffer, NoneType found
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo