package bash-completion 1:2.1-4 [modified: usr/share/doc/bash-completion/changelog.Debian.gz] failed to install/upgrade: package bash-completion is not ready for configuration cannot configure (current status `half-installed')

some times like error reporting net is also slow ,some times the drive can't mount on that time i remove the hdd and re connect then switch on

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: bash-completion 1:2.1-4 [modified: usr/share/doc/bash-completion/changelog.Debian.gz]
ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2
Uname: Linux 3.19.0-25-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.11
AptOrdering:
 unity-webapps-youtube: Install
 bash-completion: Configure
 unity-webapps-youtube: Configure
Architecture: amd64
Date: Fri Oct 16 20:03:37 2015
DuplicateSignature: package:bash-completion:1:2.1-4 [modified: usr/share/doc/bash-completion/changelog.Debian.gz]:package bash-completion is not ready for configuration cannot configure (current status `half-installed')
ErrorMessage: package bash-completion is not ready for configuration cannot configure (current status `half-installed')
InstallationDate: Installed on 2015-10-09 (7 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
SourcePackage: bash-completion
Title: package bash-completion 1:2.1-4 [modified: usr/share/doc/bash-completion/changelog.Debian.gz] failed to install/upgrade: package bash-completion is not ready for configuration cannot configure (current status `half-installed')
UpgradeStatus: No upgrade log present (probably fresh install)