DistUpgradeViewKDE.py", in line 396, in update_interface AttributeError: 'KDEInstallProgressAdapter' object has no attribute 'read'AttributeError: 'KDEInstallProgressAdapter' object has no attribute 'read'

[Nevill]

I am using Kubuntu 12.04, and before that I used 9.10, 10.04, 10.10, 11.04 and 11.10 consequently. Every single time upgrade from one distro to the next through update manager failed midway and I am forced to upgrade manually.

The updates download and extract fine, it is the installation phase where the process halts. The manager window becomes blank and disk activity ceases.

I have attached the contents of the 'dist-upgrade' folder below.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager-kde 1:0.156.14
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Mon Apr 30 01:23:45 2012
InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101008)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=ru_RU
 TERM=xterm
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to precise on 2012-04-28 (1 days ago)

[Nevill (spb-nevill)]

Too many files in this archive to attach individually.

[Jean-Baptiste Lallement (jibel)]

Thanks for your report.

Errors from the log:
2012-04-28 23:56:46,913 ERROR not handled exception in KDE frontend:
Traceback (most recent call last):
  File "/tmp/update-manager-rieTLl/DistUpgradeViewKDE.py", line 220, in pulse
    self.status.setText(_("Fetching file %li of %li at %sB/s") % (current_item, self.total_items, apt_pkg.size_to_str(self.current_cps)))
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 1: ordinal not in range(128)

and then
2012-04-29 00:00:54,202 ERROR not handled exception in KDE frontend:
Traceback (most recent call last):
  File "/tmp/update-manager-rieTLl/precise", line 7, in <module>
    sys.exit(main())
  File "/tmp/update-manager-rieTLl/DistUpgradeMain.py", line 220, in main
    if app.run():
  File "/tmp/update-manager-rieTLl/DistUpgradeController.py", line 1721, in run
    return self.fullUpgrade()
  File "/tmp/update-manager-rieTLl/DistUpgradeController.py", line 1690, in fullUpgrade
    if not self.doDistUpgrade():
  File "/tmp/update-manager-rieTLl/DistUpgradeController.py", line 1065, in doDistUpgrade
    res = self.cache.commit(fprogress,iprogress)
  File "/tmp/update-manager-rieTLl/DistUpgradeCache.py", line 256, in commit
    apt.Cache.commit(self, fprogress, iprogress)
  File "/usr/lib/python2.7/dist-packages/apt/deprecation.py", line 98, in deprecated_function
    return func(*args, **kwds)
  File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 473, in commit
    res = self.install_archives(pm, install_progress)
  File "/usr/lib/python2.7/dist-packages/apt/deprecation.py", line 98, in deprecated_function
    return func(*args, **kwds)
  File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 436, in install_archives
    res = install_progress.run(pm)
  File "/tmp/update-manager-rieTLl/DistUpgradeView.py", line 211, in run
    res = os.WEXITSTATUS(self.wait_child())
  File "/tmp/update-manager-rieTLl/DistUpgradeViewKDE.py", line 415, in wait_child
    self.update_interface()
  File "/tmp/update-manager-rieTLl/DistUpgradeViewKDE.py", line 396, in update_interface
    logging.error("got ValueError from InstallProgress.update_interface. Line was '%s' (%s)" % (self.read, e))
AttributeError: 'KDEInstallProgressAdapter' object has no attribute 'read'