package plymouth 0.9.2-3ubuntu13.5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Steven Bellis]

running 14.04 to 16.04 upgrade

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: plymouth 0.9.2-3ubuntu13.5
ProcVersionSignature: Ubuntu 4.4.0-166.195-generic 4.4.194
Uname: Linux 4.4.0-166-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.14.1-0ubuntu3.29
Architecture: amd64
Date: Fri Oct 25 02:15:49 2019
DefaultPlymouth: /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
DuplicateSignature: package:plymouth:0.9.2-3ubuntu13.5:subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2015-12-15 (1410 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: Dell Inc. OptiPlex 380
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-166-generic root=UUID=6bec0537-3d19-42b0-9f2b-656e9ee6208f ro quiet splash vt.handoff=7
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-166-generic root=UUID=6bec0537-3d19-42b0-9f2b-656e9ee6208f ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.6
 apt 1.2.32
SourcePackage: plymouth
TextPlymouth: /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
Title: package plymouth 0.9.2-3ubuntu13.5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to xenial on 2019-10-25 (0 days ago)
dmi.bios.date: 02/24/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0HN7XN
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd02/24/2011:svnDellInc.:pnOptiPlex380:pvr:rvnDellInc.:rn0HN7XN:rvrA01:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex 380
dmi.sys.vendor: Dell Inc.