package libgcrypt20:amd64 1.6.5-2ubuntu0.2 failed to install/upgrade: package libgcrypt20:amd64 is not ready for configuration cannot configure (current status 'half-installed')

[Surya Teja]

This issue pooped up while installing updates.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libgcrypt20:amd64 1.6.5-2ubuntu0.2
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Tue Dec 6 07:46:41 2016
Dependencies:
 gcc-6-base 6.0.1-0ubuntu1
 libc6 2.23-0ubuntu4
 libgcc1 1:6.0.1-0ubuntu1
 libgpg-error0 1.21-2ubuntu1
DpkgTerminalLog:
 dpkg: error processing package libgcrypt20:amd64 (--configure):
  package libgcrypt20:amd64 is not ready for configuration
  cannot configure (current status 'half-installed')
ErrorMessage: package libgcrypt20:amd64 is not ready for configuration cannot configure (current status 'half-installed')
InstallationDate: Installed on 2016-12-05 (0 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.15
SourcePackage: libgcrypt20
Title: package libgcrypt20:amd64 1.6.5-2ubuntu0.2 failed to install/upgrade: package libgcrypt20:amd64 is not ready for configuration cannot configure (current status 'half-installed')
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[Adrien Nader (adrien)]

JournalErrors.txt shows that this is caused by the infamous issue with debconf: 349469