update-manager says failed allways .

[Mitsutoshi NAKANO]

1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 13.04
Release: 13.04
Codename: raring

2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center
update-manager: 1:0.186.1
apt: 0.9.7.7ubuntu4
dpkg: 1.16.10ubuntu1

3) What you expected to happen
I expected that update would be completed normally .

4) What happened instead
The update-manager said failed .

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: update-manager 1:0.186.1
ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2
Uname: Linux 3.8.0-26-generic i686
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: i386
Date: Thu Jul 25 07:31:08 2013
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'launch-time' b'1374704070'
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-width' b'499'
InstallationDate: Installed on 2013-05-14 (71 days ago)
InstallationMedia: Ubuntu 13.04 "Raring" - Build i386 LIVE Binary 20130430-17:57
InterpreterPath: /usr/bin/python3.3
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=ja_JP.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: No upgrade log present (probably fresh install)

[Mitsutoshi NAKANO (bkbin005)]

Today, the update-manager completed normally .
I said "always", but it is an error .

[Mitsutoshi NAKANO (bkbin005)]

Sometimes this problem is reproduced .
Please see also https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/1206331 .

This problem is reproduced on 13.10 daily (saucy) too .
Please see also https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1206574 .