ubiquity crashed with RuntimeError in progress_loop()

[john mall]

Binary package hint: ubiquity

it happened with the "desktop-install" version of karmic-koala.
i used the daily-build version of 30.06.2009

ProblemType: Crash
Architecture: i386
Date: Thu Jul 2 08:35:12 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
InterpreterPath: /usr/bin/python2.6
LiveMediaBuild: Ubuntu 9.10 "Karmic Koala" - Alpha i386 (20090630)
Package: ubiquity 1.13.7
ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity gtk_ui
ProcEnviron: Error: [Errno 13] Permission denied: '/proc/6725/environ'
ProcVersionSignature: Ubuntu 2.6.30-10.12-generic
PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', 'gtk_ui']
SourcePackage: ubiquity
Title: ubiquity crashed with RuntimeError in progress_loop()
Uname: Linux 2.6.30-10-generic i686
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