[Bug 1524987] Re: package libvncserver1:amd64 0.9.10+dfsg-3 failed to install/upgrade: package libvncserver1:amd64 is already installed and configured

[dino99]

*** This bug is a duplicate of bug 1407757 ***
    https://bugs.launchpad.net/bugs/1407757

** This bug has been marked a duplicate of bug 1407757
   multi-arch packages cannot be installed due to dpkg wrongly detecting them as already installed

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https://bugs.launchpad.net/bugs/1524987

Title:
  package libvncserver1:amd64 0.9.10+dfsg-3 failed to install/upgrade:
  package libvncserver1:amd64 is already installed and configured

Status in dpkg package in Ubuntu:
  New

Bug description:
  Hi there, I just installed Ubuntu Mate and everytime that i want to install something with the terminal i get this message ! : W: GPG error: http://download.opensuse.org  Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 977C43A8BA684223
  <istvan> W: GPG error: http://download.opensuse.org  Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 977C43A8BA684223
  <istvan> W: Failed to fetch http://ppa.launchpad.net/thefanclub/grive-tools/ubuntu/dists/wily/main/binary-amd64/Packages  404  Not Found
  <istvan> W: Failed to fetch http://ppa.launchpad.net/thefanclub/grive-tools/ubuntu/dists/wily/main/binary-i386/Packages  404  Not Found
  <istvan> E: Some index files failed to download. They have been ignored, or old ones used instead.

  ProblemType: Package
  DistroRelease: Ubuntu 15.10
  Package: libvncserver1:amd64 0.9.10+dfsg-3
  ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
  Uname: Linux 4.2.0-19-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
  Architecture: amd64
  Date: Thu Dec 10 22:13:24 2015
  DuplicateSignature: package:libvncserver1:amd64:0.9.10+dfsg-3:package libvncserver1:amd64 is already installed and configured
  ErrorMessage: package libvncserver1:amd64 is already installed and configured
  InstallationDate: Installed on 2015-12-01 (8 days ago)
  InstallationMedia: Ubuntu-MATE 15.10 "Wily Werewolf" - Release amd64 (20151021)
  RelatedPackageVersions:
   dpkg 1.18.2ubuntu5.1
   apt  1.0.10.2ubuntu1
  SourcePackage: dpkg
  Title: package libvncserver1:amd64 0.9.10+dfsg-3 failed to install/upgrade: package libvncserver1:amd64 is already installed and configured
  UpgradeStatus: No upgrade log present (probably fresh install)

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