package emacs25 (not installed) failed to install/upgrade: installed emacs25 package post-installation script subprocess returned error exit status 1

[Karanpal Singh]

Emacs25 fails to install.

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: emacs25 (not installed)
ProcVersionSignature: Ubuntu 4.15.0-34.37-generic 4.15.18
Uname: Linux 4.15.0-34-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
AptOrdering:
 emacs25-lucid:amd64: Remove
 emacs25:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
Date: Mon Oct 1 18:14:29 2018
ErrorMessage: installed emacs25 package post-installation script subprocess returned error exit status 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: emacs25
Title: package emacs25 (not installed) failed to install/upgrade: installed emacs25 package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)