package bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 6

[Waqar]

i dont know

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu0.1
ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2
Uname: Linux 3.19.0-25-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
CasperVersion: 1.340.2
Date: Sat Feb 13 00:09:01 2016
DpkgTerminalLog:
 Log started: 2016-02-13 00:06:04
 Log ended: 2016-02-13 00:06:28

 Log started: 2016-02-13 00:08:04
ErrorMessage: subprocess installed post-installation script returned error exit status 6
LiveMediaBuild: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
SourcePackage: bcmwl
Title: package bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 6
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The version of update-initramfs that you likely have installed is unable to work on a persistent usb stick. You can resolve this issue by upgrading the version of casper on your system. This can be done via the commands:

sudo apt-get update; sudo apt-get install casper

Then performing the software update or installation that you were originally trying. If this does not resolve your bug please set its status back to New. Thanks in advance!