[Bug 840606] Re: ubiquity crashed with TypeError in __new__(): object of type 'NoneType' has no len()

[Apport retracing service]

*** This bug is a duplicate of bug 838048 ***
    https://bugs.launchpad.net/bugs/838048

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 #839457, 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.

** Tags removed: need-duplicate-check

** Attachment removed: "Dependencies.txt"
   https://bugs.launchpad.net/bugs/840606/+attachment/2350258/+files/Dependencies.txt

** Attachment removed: "ProcMaps.txt"
   https://bugs.launchpad.net/bugs/840606/+attachment/2350259/+files/ProcMaps.txt

** Attachment removed: "ProcStatus.txt"
   https://bugs.launchpad.net/bugs/840606/+attachment/2350260/+files/ProcStatus.txt

** This bug has been marked a duplicate of private bug 838048

** Visibility changed to: Public

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https://bugs.launchpad.net/bugs/840606

Title:
  ubiquity crashed with TypeError in __new__(): object of type
  'NoneType' has no len()

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  This was an automated error report using the 11.10 beta 1 desktop cd
  to install ubuntu.

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: ubiquity 2.7.25
  ProcVersionSignature: Ubuntu 3.0.0-9.15-generic 3.0.3
  Uname: Linux 3.0.0-9-generic i686
  Architecture: i386
  CasperVersion: 1.280
  Date: Sat Sep  3 20:42:27 2011
  ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
  InterpreterPath: /usr/bin/python2.7
  LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110901)
  ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity gtk_ui
  ProcEnviron: Error: [Errno 13] Permission denied: '/proc/6197/environ'
  PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', 'gtk_ui']
  SourcePackage: ubiquity
  Title: ubiquity crashed with TypeError in __new__(): object of type 'NoneType' has no len()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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