[Bug 1111186] Re: do-release-upgrade crashed with SystemError in open(): E:Problem renaming the file /var/cache/apt/pkgcache.bin.cn9u6r to /var/cache/apt/pkgcache.bin - rename (2: No such file or directory), W:You may want to run apt-get update to correct these problems

[Nicholas]

I want to fix this bug, please put a solution in simple language, all
that coding i'm seeing I don't understand

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https://bugs.launchpad.net/bugs/1111186

Title:
  do-release-upgrade crashed with SystemError in open(): E:Problem
  renaming the file /var/cache/apt/pkgcache.bin.cn9u6r to
  /var/cache/apt/pkgcache.bin - rename (2: No such file or directory),
  W:You may want to run apt-get update to correct these problems

Status in “ubuntu-release-upgrader” package in Ubuntu:
  Confirmed

Bug description:
  No idea what happened.

  ProblemType: Crash
  DistroRelease: Ubuntu 13.04
  Package: ubuntu-release-upgrader-core 1:0.192.5
  ProcVersionSignature: Ubuntu 3.8.0-2.6-generic 3.8.0-rc4
  Uname: Linux 3.8.0-2-generic x86_64
  ApportVersion: 2.8-0ubuntu3
  Architecture: amd64
  CrashDB: ubuntu
  Date: Thu Jan 31 08:21:35 2013
  ExecutablePath: /usr/bin/do-release-upgrade
  InstallationDate: Installed on 2011-08-19 (530 days ago)
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110817)
  InterpreterPath: /usr/bin/python3.3
  MarkForUpload: True
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
  PythonArgs: ['/usr/lib/ubuntu-release-upgrader/check-new-release', '-q']
  SourcePackage: ubuntu-release-upgrader
  Title: do-release-upgrade crashed with SystemError in open(): E:Problem renaming the file /var/cache/apt/pkgcache.bin.cn9u6r to /var/cache/apt/pkgcache.bin - rename (2: No such file or directory), W:You may want to run apt-get update to correct these problems
  UpgradeStatus: Upgraded to raring on 2013-01-17 (14 days ago)
  UserGroups: utah

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