laravel-authentication-acl package not loading css and js (assets)

laravel-authentication-acl

1-Add to  composer.json require field the following lines:

  "require": {
    ...
    "jacopo/laravel-authentication-acl": "1.1.*"
  },
2- run composer update command.

3- opend the file app/config/app.php and added to the 'providers' option the following line: 'Jacopo\Authentication\AuthenticationServiceProvider',

4-Then run this command to publish the configuration files: php artisan authentication:prepare 

5- run the command: php artisan authentication:install.

6- copy D:\xamp\htdocs\halls\vendor\jacopo\laravel-authentication-acl\public into D:\xamp\htdocs\halls\public\packages\jacopo

7- run this command to publish the configuration files: php artisan authentication:prepare


8- run the command: php artisan authentication:install


when i examin the source of the files in browser for example
http://halls.me/packages/jacopo/laravel-authentication-acl/css/style.css
and click of it it shows
Whoops, looks like something went wrong.

that means that the browser not read assets files any help ?