package virtualbox-ext-pack 5.2.10-2 failed to install/upgrade: installed virtualbox-ext-pack package post-installation script subprocess returned error exit status 1

[sxk]

as the summary, Ubuntu 18.04.beta2

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: virtualbox-ext-pack 5.2.10-2
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.9-0ubuntu5
Architecture: amd64
Date: Fri Apr 20 18:26:13 2018
ErrorMessage: installed virtualbox-ext-pack package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2018-04-16 (4 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Beta amd64 (20180404)
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3
PythonDetails: /root/Error: command ['which', 'python'] failed with exit code 1:, Error: [Errno 2] No such file or directory: "/root/Error: command ['which', 'python'] failed with exit code 1:": "/root/Error: command ['which', 'python'] failed with exit code 1:", unpackaged
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6
SourcePackage: virtualbox-ext-pack
Title: package virtualbox-ext-pack 5.2.10-2 failed to install/upgrade: installed virtualbox-ext-pack package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Brian Murray (brian-murray)]

Setting up virtualbox-ext-pack (5.2.10-2) ...
virtualbox-ext-pack: downloading: http://download.virtualbox.org/virtualbox/5.2.10/Oracle_VM_VirtualBox_Extension_Pack-5.2.10.vbox-extpack
The file will be downloaded into /usr/share/virtualbox-ext-pack
Hash mismatch Oracle_VM_VirtualBox_Extension_Pack-5.2.10.vbox-extpack: expected 8c31bc1d0337e6668e0d9140defc6deaf265087f855783dd09b873a064a70703, or wrong accept-license key
dpkg: error processing package virtualbox-ext-pack (--configure):
 installed virtualbox-ext-pack package post-installation script subprocess returned error exit status 1

[Launchpad Janitor (janitor)]

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