package libwebkit2gtk-4.0-37:amd64 2.12.5-0ubuntu0.16.04.1 failed to install/upgrade: package libwebkit2gtk-4.0-37:amd64 is not ready for configuration cannot configure (current status 'half-installed')

i dont know

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libwebkit2gtk-4.0-37:amd64 2.12.5-0ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19
Uname: Linux 4.4.0-38-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Sat Oct 1 12:02:36 2016
DpkgHistoryLog:
 Start-Date: 2016-10-01 12:02:28
 Commandline: aptdaemon role='role-commit-packages' sender=':1.76'
 Upgrade: snapd:amd64 (2.14.2~16.04, 2.15.2ubuntu1), snap-confine:amd64 (1.0.38-0ubuntu0.16.04.8, 1.0.38-0ubuntu0.16.04.10), isc-dhcp-common:amd64 (4.3.3-5ubuntu12.1, 4.3.3-5ubuntu12.3), ubuntu-core-launcher:amd64 (1.0.38-0ubuntu0.16.04.8, 1.0.38-0ubuntu0.16.04.10), isc-dhcp-client:amd64 (4.3.3-5ubuntu12.1, 4.3.3-5ubuntu12.3)
DuplicateSignature:
 package:libwebkit2gtk-4.0-37:amd64:2.12.5-0ubuntu0.16.04.1
 Processing triggers for man-db (2.7.5-1) ...
 dpkg: error processing package libwebkit2gtk-4.0-37:amd64 (--configure):
  package libwebkit2gtk-4.0-37:amd64 is not ready for configuration
ErrorMessage: package libwebkit2gtk-4.0-37:amd64 is not ready for configuration cannot configure (current status 'half-installed')
InstallationDate: Installed on 2016-08-08 (54 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: webkit2gtk
Title: package libwebkit2gtk-4.0-37:amd64 2.12.5-0ubuntu0.16.04.1 failed to install/upgrade: package libwebkit2gtk-4.0-37:amd64 is not ready for configuration cannot configure (current status 'half-installed')
UpgradeStatus: No upgrade log present (probably fresh install)