[Bug 1529450] [NEW] Installer crashed

[Gene Soo]

Public bug reported:

Description:    Ubuntu Xenial Xerus (development branch)
Release:        16.04
Daily Build from tonight

This is a hard failure encountered several times.

Message output from Crash

Traceback (most recent call last):
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_ui.py", line 1068, in on_next_clicked
    self.dbfilter.ok_handler()
  File "/usr/lib/ubiquity/plugins/ubi-prepare.py", line 344, in ok_handler
    secureboot_key = self.ui.get_secureboot_key()
AttributeError: 'PageKde' object has no attribute 'get_secureboot_key'

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.40
ProcVersionSignature: Ubuntu 4.3.0-2.11-generic 4.3.0
Uname: Linux 4.3.0-2-generic x86_64
ApportVersion: 2.19.3-0ubuntu2
Architecture: amd64
CasperVersion: 1.366
CurrentDesktop: KDE
Date: Sun Dec 27 08:17:18 2015
InstallCmdLine: file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
LiveMediaBuild: Kubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151227)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kubuntu ubiquity-2.21.40 xenial

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https://bugs.launchpad.net/bugs/1529450

Title:
  Installer crashed

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