do-release-upgrade crashed with AttributeError in run(): 'apt_pkg.PackageManager' object has no attribute 'ResultFailed'

[JWright]

during partial upgrade: dell d830

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.4
ProcVersionSignature: Ubuntu 4.4.0-2.16-generic 4.4.0
Uname: Linux 4.4.0-2-generic x86_64
ApportVersion: 2.19.4-0ubuntu2
Architecture: amd64
CrashDB: ubuntu
Date: Sat Feb 6 22:52:09 2016
ExecutablePath: /usr/bin/do-release-upgrade
InstallationDate: Installed on 2016-02-04 (3 days ago)
InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160103)
InterpreterPath: /usr/bin/python3.5
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/do-partial-upgrade --frontend=DistUpgradeViewGtk3
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
 LANGUAGE=en_US
 PATH=(custom, no user)
PythonArgs: ['/usr/bin/do-release-upgrade', '--frontend=DistUpgradeViewGtk3']
SourcePackage: ubuntu-release-upgrader
Title: do-release-upgrade crashed with AttributeError in run(): 'apt_pkg.PackageManager' object has no attribute 'ResultFailed'
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

VarLogDistupgradeTermlog:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1540017, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.