laravel 5 : php artisan quickadmin:install problem

I download LaravelDaily/quickadmin I followed all the step . I have that error when I type the command ( php artisan quickadmin:install ) I tried I have not found the problem yet I 'm set .env and conf/database.php. i'm using postgres database error: [PDOException] SQLSTATE[HY000] [1045] Access denied for user 'postgres'@'localhost' (using password: YES)

thank's