installer of Kubuntu crashed after "Who are you?" step

[adrien]

Installer on Kubuntu 12.04 LTS crashed at "Who are you?" step after clicking on "Next >"

The message is :
Trace back (most recent call last):
File "/usr/lib/ubiquity/frontend/kde_ui.py", line 957, in on_next-clicked
self.dbfilter.ok_handler
File "/usr/lib/ubiquity/plugins/ubi-usersetup.py", line 806, in ok_handler
self.ui.hostname_error(make_error_srting(self.controller, errors))
ArributeError: 'Page' object has not attribute 'controller'
file:///var/log/syslog
file:///var/log/partman

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.10.16
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
Uname: Linux 3.2.0-23-generic-pae i686
ApportVersion: 2.0.1-0ubuntu5
Architecture: i386
CasperVersion: 1.315
Date: Fri Aug 24 16:53:58 2012
InstallCmdLine: initrd=/casper/initrd.lz file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity quiet splash -- BOOT_IMAGE=/casper/vmlinuz
LiveMediaBuild: Kubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
ProcEnviron:
 LANGUAGE=
 TERM=xterm
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Dimitri John Ledkov (xnox)]

needs checking affecting code, fix and sru...

[Dimitri John Ledkov (xnox)]

Please use the 12.04.1 cd Images.
They have a fix for your bug included:
http://cdimage.ubuntu.com/kubuntu/releases/12.04.1/release/