Installer crashes while loading live kubuntu session and when trying to install

[Istimsak]

Traceback (most recent call last):
  File "/usr/lib/ubiquity/bin/ubiquity", line 616, in <module>
    main(oem_config)
  File "/usr/lib/ubiquity/bin/ubiquity", line 600, in main
    install(args[0], query=options.query)
  File "/usr/lib/ubiquity/bin/ubiquity", line 259, in install
    wizard = ui.Wizard(distro)
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_ui.py", line 284, in __init__
    self.update_next_button(install=False)
TypeError: update_next_button() got an unexpected keyword argument 'install'

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: ubiquity 2.13.13
ProcVersionSignature: Ubuntu 3.8.0-11.20-generic 3.8.2
Uname: Linux 3.8.0-11-generic i686
ApportVersion: 2.9.1-0ubuntu1
Architecture: i386
CasperVersion: 1.330
Date: Mon Mar 11 00:56:12 2013
InstallCmdLine: file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity initrd=/casper/initrd.lz quiet splash --
LiveMediaBuild: Kubuntu 13.04 "Raring Ringtail" - Alpha i386 (20130308)
MarkForUpload: True
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Istimsak (saqman2060)]

When kubuntu 13.04 was booting the desktop, an error prompt desplayed, "sorry, the installer has crashed". Then display a report on want crashed in the install which is posted in the above report.

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1153411