package grub-efi-amd64 2.02-2ubuntu8.6 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 127

[Andrew Heritage]

Errors after trying latest sudo aptitude update

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: grub-efi-amd64 2.02-2ubuntu8.6
ProcVersionSignature: Ubuntu 4.15.0-34.37-generic 4.15.18
Uname: Linux 4.15.0-34-generic x86_64
NonfreeKernelModules: lkp_Ubuntu_4_15_0_34_37_generic_44 nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
Date: Thu Oct 11 10:50:40 2018
ErrorMessage: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 127
InstallationDate: Installed on 2018-08-26 (45 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
InvalidGrubScript: /etc/default/grub
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-34-generic root=UUID=28b5d964-9ec9-400d-b166-7536079551a1 ro quiet splash vt.handoff=1
Python3Details: /usr/bin/python3.6, Python 3.6.6, python3-minimal, 3.6.5-3ubuntu1
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.3ubuntu0.1
SourcePackage: grub2
Title: package grub-efi-amd64 2.02-2ubuntu8.6 failed to install/upgrade: installed grub-efi-amd64 package post-installation script subprocess returned error exit status 127
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.