Ubiquity crash after netwok step

[Nairwolf]

Just after put the wifi password, ubuiquity has crashed and prevented me to continue installation.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.47
ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
Uname: Linux 4.4.0-8-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CasperVersion: 1.367
CurrentDesktop: XFCE
Date: Wed Mar 2 21:04:26 2016
InstallCmdLine: initrd=/casper/initrd.lz file=/cdrom/preseed/xubuntu.seed boot=casper only-ubiquity quiet splash --- BOOT_IMAGE=/casper/vmlinuz.efi
LiveMediaBuild: Xubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160302)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1552413

[Simon Quigley (tsimonq2)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version. If you test it and it is still an issue, kindly upload the updated logs by running only once:
apport-collect 1552413

and any other logs that are relevant for this particular issue.

[Launchpad Janitor (janitor)]

[Expired for ubiquity (Ubuntu) because there has been no activity for 60 days.]