package unity8-lxc (not installed) failed to install/upgrade: subprocess installed post-removal script returned error exit status 1

then login with HDMI connected monitor

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: unity8-lxc (not installed)
ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3
Uname: Linux 4.4.0-9-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20-0ubuntu3
AptOrdering:
 unity8-lxc: Purge
 NULL: ConfigurePending
Architecture: amd64
Date: Thu Mar 3 10:22:03 2016
ErrorMessage: subprocess installed post-removal script returned error exit status 1
InstallationDate: Installed on 2016-02-25 (6 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1
 apt 1.2.4
SourcePackage: unity8-lxc
Title: package unity8-lxc (not installed) failed to install/upgrade: subprocess installed post-removal script returned error exit status 1
UpgradeStatus: Upgraded to xenial on 2016-03-02 (0 days ago)