Error accessing localhost after installing Laravel

Question

As I said in a previous question I am starting my studies and have already done the search for this error now in several places. Recently I installed Composer and Laravel on my note and when I run the command php artisan serve in the cmd inside the project folders they run perfectly in the browser. But I have other projects that I am not developing with Laravel and when I try to access another project that I have without Laravel by the way localhost/librio, which has index.php among other files, the browser gives the error below.

Object not found! Requested URL not found on this server. If you entered the address (URL) manually, please check the address syntax again.

If you believe you have encountered a problem on the server, please contact the webmaster.

Error 404 localhost Apache/2.4.39 (Win64) Openssl/1.1.1b PHP/7.3.4

And so no project works, I can’t access anything through the browser

Answer 1

After some time I was able to verify that there was the service Mysql80 running automatically and that occupied the port 3306, for this reason did not let open the Phpmyadmin in this door. I left the service off.