package libc6-dbg:amd64 2.23-0ubuntu9 failed to install/upgrade: package libc6-dbg:amd64 is not ready for configuration cannot configure (current status 'half-installed')

[Herman]

Description: Ubuntu 16.04.2 LTS
Release: 16.04
herman@herman-Aspire-ES1-132:~$ apt-cache policy pkgname
N: Unable to locate package pkgname

suddenly in screen: Package system is broken. No third party repositories.Stop sign on top of screen.
Installation is on week old only 2x updated
Wanted to install Clam from software center. Impossible.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libc6-dbg:amd64 2.23-0ubuntu9
ProcVersionSignature: Ubuntu 4.8.0-54.57~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-54-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.6
AptOrdering:
 libc6: Install
 libc6: Configure
 libc6-dev: Configure
 libc6-dbg: Configure
 NULL: ConfigurePending
Architecture: amd64
Date: Tue Jun 20 20:30:16 2017
Dependencies:
 gcc-6-base 6.0.1-0ubuntu1
 libc6 2.23-0ubuntu9
 libgcc1 1:6.0.1-0ubuntu1
DuplicateSignature:
 package:libc6-dbg:amd64:2.23-0ubuntu9
 Setting up libc6-dev:amd64 (2.23-0ubuntu9) ...
 dpkg: error processing package libc6-dbg:amd64 (--configure):
  package libc6-dbg:amd64 is not ready for configuration
ErrorMessage: package libc6-dbg:amd64 is not ready for configuration cannot configure (current status 'half-installed')
InstallationDate: Installed on 2017-05-29 (22 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.20
SourcePackage: glibc
Title: package libc6-dbg:amd64 2.23-0ubuntu9 failed to install/upgrade: package libc6-dbg: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.