Warning: require_once(C:\wamp\www\tienda\vendor\autoload.php): failed to open stream: No such file or directory in /var/www/tienda/vendor/mercadopago/dx-php/samples/index.php on line 4

Fatal error: require_once(): Failed opening required 'C:\wamp\www\tienda\vendor\autoload.php' (include_path='.:/usr/share/php') in /var/www/tienda/vendor/mercadopago/dx-php/samples/index.php on line 4