I ran the php server on cmd using `php -S localhost:8080`, like this:

[![enter image description here](https://i.stack.imgur.com/tTNZW.png)](https://i.stack.imgur.com/tTNZW.png)

And I got this problem opening the localhost:

[![enter image description here](https://i.stack.imgur.com/lQm2v.png)](https://i.stack.imgur.com/lQm2v.png)

What do I supposed to do?