How do I run downloaded project of laravel from cloud9 on localhost server?

I have made a project on cloud 9 using laravel.

Downloaded it.

Extracted in my project directory wamp/www/laravel.

I have been giving the following command on gitbash.

cd e:/wamp/www/laravel

then

php artisan serve

Then going to localhost:8000 in my browser,following error occurs

    PDOException in Connector.php line 55:

SQLSTATE[HY000] [1045] Access denied for user 'yash2code'@'localhost' (using password: NO)

via Chebli Mohamed