notify-send must be installed on the system

[abada]

 gulp scripts 

   23:59:30] Finished 'scripts' after 24 s
   [23:59:30] gulp-notify: [Laravel Elixir] Scripts Merged!
    [23:59:30] gulp-notify: [Error in notifier] Error in plugin 'gulp-notify'
    Message:
      not found: notify-send
      [23:59:30] gulp-notify: [Laravel Elixir] Scripts Merged!
      [23:59:30] gulp-notify: [Error in notifier] Error in plugin 'gulp-notify'
     Message:
     notify-send must be installed on the system.

[stojankukrika]

don't worry about that messages. You can do it if you like but it works without it.