ErrorException Argument 1 passed to Zizaco\Entrust\Middleware\EntrustRole::__construct()

I got this ERROR in LARAVEL 5.1 while using Entrust Package.

After autoload in command line, I got this error

C:\xampp1\htdocs\project>composer dump-autoload Generating autoload files

C:\xampp1\htdocs\project>php artisan db:seed --class=RolesTableSeeder

[ErrorException] Argument 1 passed to Zizaco\Entrust\Middleware\EntrustRole::__construct() must be an instance of Illuminate\Contracts\Auth \Guard,

I'm very new to LARAVEL, Please anyone Help me.....

//////////////// Role Migration Class ////////////////////////

<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;

class EntrustSetupTables extends Migration
{
    public function up()
    {
        // Create table for storing roles
        Schema::create('roles', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name')->unique();
            $table->string('display_name')->nullable();
            $table->string('description')->nullable();
            $table->timestamps();
        });
   }

   public function down()
    {
       Schema::drop('roles');
    }
}
?>

/////////////////// Role Model //////////////////////////////////

<?php

namespace App;

use Zizaco\Entrust\Middleware\EntrustRole;
use Zizaco\Entrust\Traits\EntrustUserTrait;

class Role extends EntrustRole
{
    use EntrustUserTrait;
    protected $fillable = ['name', 'display_name', 'description'];
}
?>

//////////////////// RolesTableSeeder ///////////////////////////

<?php
use App\Role;
use Illuminate\Database\Seeder;
use Zizaco\Entrust\Middleware;


class RolesTableSeeder extends Seeder
{

    public function run()
    {
        $owner = new Role();
        $owner->name         = 'owner';
        $owner->display_name = 'Project Owner'; // optional
        $owner->description  = 'User is the owner of a given project'; // optional
        $owner->save();

        $admin = new Role();
        $admin->name         = 'admin';
        $admin->display_name = 'User Administrator'; // optional
        $admin->description  = 'User is allowed to manage and edit other users'; // optional
        $admin->save();
    }
}
?>

/////////////////////////// .env file //////////////////////////////

DB_HOST=localhost
DB_DATABASE=project_api
DB_USERNAME=root
DB_PASSWORD=

CACHE_DRIVER=array
SESSION_DRIVER=file
QUEUE_DRIVER=sync

MAIL_DRIVER=smtp
MAIL_HOST=mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null

via Chebli Mohamed