Laravel 5: php artisan migrate issue

I have correctly specified the configuration in database.php file.

'mysql' => [
        'driver'    => 'mysql',
        'host'      => env('DB_HOST', 'localhost'),
        'database'  => env('DB_DATABASE', 'laravel5'),
        'username'  => env('DB_USERNAME', 'root'),
        'password'  => env('DB_PASSWORD', 'abc123'),
        'charset'   => 'utf8',
        'collation' => 'utf8_unicode_ci',
        'prefix'    => '',
        'strict'    => false,
    ],

when i run this on console

php artisan migrate

It gives the error Access denied for user 'homestead'@'localhost' (using password: YES)'

Why is it is giving this error and what is the solution?

via Chebli Mohamed