ubiquity crashed with AttributeError in customize_installer()

[DocHifi]

Binary package hint: ubiquity

When I try to install Ubuntu 10.04,daily build from 06.01.2010 the installer don't work.

ProblemType: Crash
Architecture: i386
Date: Wed Jan 6 12:08:26 2010
DistroRelease: Ubuntu 10.04
ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
InterpreterPath: /usr/bin/python2.6
LiveMediaBuild: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100106)
Package: ubiquity 2.1.6
ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity gtk_ui
ProcEnviron: Error: [Errno 13] Permission denied: '/proc/3278/environ'
ProcVersionSignature: Ubuntu 2.6.32-9.13-generic
PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', 'gtk_ui']
SourcePackage: ubiquity
Tags: lucid
Title: ubiquity crashed with AttributeError in customize_installer()
Uname: Linux 2.6.32-9-generic i686
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #503778, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.