Video player is not working.. in Ububtu 14.04

while opening video player showing

then trying install plugin showing as..

open terminal , type

  sudo dpkg --configure -a

if doesn't this

  sudo apt autoremove <packagename>

if doesn't need internet connection.type in terminal

  sudo apt-get autoclean

remove sources.list file.and create new sources.list...

sudo rm /etc/apt/sources.list

then, type in

sudo software-properties-gtk

open software-properties-gtk , newsources.list will created automatically.

then change server or other server of choice. must enable repositories new dialog in order create new sources.list.

tick boxes click on revert click close.

need restore default repositories

 sudo apt-get update && sudo apt-get dist-upgrade -y

(it practice backup file before installing recover if such things happen)

now install video player plugins :)

Primitatvve