Failed to share folder via Samba

[Volker von Einem]

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was asked to install additional packages
installation failed

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: grub2-common 2.02~beta2-36ubuntu3.2
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
CrashReports:
 640:999:116:2469178:2016-08-08 19:56:52.363672483 +0200:2016-08-08 19:56:47.068153600 +0200:/var/crash/_usr_bin_compiz.999.crash
 600:0:116:388676:2016-08-09 06:40:32.688627958 +0200:2016-08-09 06:40:33.688627958 +0200:/var/crash/grub2-common.0.crash
 600:0:116:387630:2016-08-09 06:40:33.600633678 +0200:2016-08-09 06:40:33.572635511 +0200:/var/crash/libfuse2:amd64.0.crash
 600:0:116:388674:2016-08-09 06:40:33.628631845 +0200:2016-08-09 06:40:33.600633678 +0200:/var/crash/grub-common.0.crash
Date: Tue Aug 9 06:40:33 2016
DuplicateSignature:
 package:grub2-common:2.02~beta2-36ubuntu3.2
 Processing triggers for ufw (0.35-0ubuntu2) ...
 dpkg: error processing package libfuse2:amd64 (--configure):
  package libfuse2:amd64 is already installed and configured
ErrorMessage: package grub2-common is already installed and configured
InstallationDate: Installed on 2016-08-08 (0 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
ProcCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-34-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: dpkg
Title: package grub2-common 2.02~beta2-36ubuntu3.2 failed to install/upgrade: package grub2-common is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)