installation program crashes while installing ubuntu due to a MergeList error

[Agnieszka]

While installing ubuntu 14.04 from DVD (I have already WIndows XP on the computer) the installation was broken and I got informatin that installation program crashed

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubiquity 2.18.8
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic i686
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: i386
CasperVersion: 1.340
Date: Wed Aug 13 22:19:34 2014
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
LiveMediaBuild: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release i386 (20140722.2)
ProcEnviron:
 LANGUAGE=pl_PL.UTF-8
 TERM=linux
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pl_PL.UTF-8
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Exception during installation:
Aug 13 20:18:48 ubuntu /plugininstall.py: Traceback (most recent call last):
Aug 13 20:18:48 ubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1770, in <module>
Aug 13 20:18:48 ubuntu /plugininstall.py: install.run()
Aug 13 20:18:48 ubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 78, in wrapper
Aug 13 20:18:48 ubuntu /plugininstall.py: func(self)
Aug 13 20:18:48 ubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 252, in run
Aug 13 20:18:48 ubuntu /plugininstall.py: self.remove_extras()
Aug 13 20:18:48 ubuntu /plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1455, in remove_extras
Aug 13 20:18:48 ubuntu /plugininstall.py: cache = Cache()
Aug 13 20:18:48 ubuntu /plugininstall.py: File "/usr/lib/python3/dist-packages/apt/cache.py", line 107, in __init__
Aug 13 20:18:48 ubuntu /plugininstall.py: self.open(progress)
Aug 13 20:18:48 ubuntu /plugininstall.py: File "/usr/lib/python3/dist-packages/apt/cache.py", line 151, in open
Aug 13 20:18:48 ubuntu /plugininstall.py: self._cache = apt_pkg.Cache(progress)
Aug 13 20:18:48 ubuntu /plugininstall.py: SystemError: E:Encountered a section with no Package: header, E:Problem with MergeList /target/var/lib/apt/lists/pl.archive.ubuntu.com_ubuntu_dists_trusty_universe_i18n_Translation-en, E:The package lists or status file could not be parsed or opened.
Aug 13 20:18:48 ubuntu /plugininstall.py:

[Brian Murray (brian-murray)]

It looks to me like there was a problem with your mirror or your connection to it.

Aug 13 20:17:01 ubuntu in-target: Pobrano 22,1 MB w 46s (471 kB/s)
Aug 13 20:17:01 ubuntu in-target: Czytanie list pakietów...
Aug 13 20:17:03 ubuntu in-target:
Aug 13 20:17:03 ubuntu in-target: E: Encountered a section with no Package: header
Aug 13 20:17:03 ubuntu in-target: E: Problem with MergeList /var/lib/apt/lists/pl.archive.ubuntu.com_ubuntu_dists_trusty_universe_i18n_Translation-en
Aug 13 20:17:03 ubuntu in-target: E: Nie udało się otworzyć lub zanalizować zawartości list pakietów.
Aug 13 20:17:05 ubuntu in-target: Czytanie list pakietów...
Aug 13 20:17:05 ubuntu in-target:
Aug 13 20:17:07 ubuntu in-target: Czytanie list pakietów...
Aug 13 20:17:07 ubuntu in-target:
Aug 13 20:17:09 ubuntu in-target: Ign. http://security.ubuntu.com trusty-security InRelease

I would try the installation process again and see if it works that time.