ubiquity has a bug

[Roberto Pensa]

the installer crashes during the installation after the base system is installed. It should be a dual boot parallel with windows XP. If I try to intall Ubuntu 13.04 it works but 13.04 is outdated!

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubiquity 2.18.8.13
ProcVersionSignature: Ubuntu 4.4.0-31.50~14.04.1-generic 4.4.13
Uname: Linux 4.4.0-31-generic i686
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: i386
CasperVersion: 1.340.2
Date: Thu Apr 19 15:37:10 2018
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
LiveMediaBuild: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release i386 (20160803)
ProcEnviron:
 LANGUAGE=de_DE.UTF-8
 TERM=linux
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Exception during installation:
Apr 19 13:36:27 ubuntu /plugininstall.py: SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1)
Apr 19 13:36:27 ubuntu /plugininstall.py:

[Phillip Susi (psusi)]

It appears that one of the files you downloaded for the install was corrupt. Please try again. If the problem persists, you may have a faulty network connection.