I can see a Laravel 6 intallation in localhost - laravel

Question

I was testing a clean Laravel 6 installation to migrate an old Laravel project in one Ubuntu 18.04 environment, no used with PHP projects before.
After install PHP, Apache, Mysql... I test one PHP page OK.
I set the permissioins to 777 in /var/www/html/ subdirectories.
I cloned my old Laravel App to migrate and did one clean Laravel 6 installation.
First, I loaded the default welcome page in Laravel 6. After, I put some routes and views from the old project and tried to load some of then, but I had errors of type:
page don't found
I checked the settings of Apache and if mod_rewrite was available... finally, I run the old project OK, but my Laravel 6 is dissapeared. I can see it in the disk, but if load the http://localhost/laravel/ directory I can't see it.
Edited
Content of /etc/apache2/sites-available/000-default.conf:
<VirtualHost *:80>
ServerAdmin webmaster#localhost
DocumentRoot /var/www/html
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

Answer 1

What i can suggest you to try is to define one Virtual Host for each project in this way:
Put this (with proper information) inside /etc/apache2/sites-available/000-default.conf
<VirtualHost *:80>
DocumentRoot "/var/www/html/YOUR_LARAVEL_PROJECT_ROOT/public"
ServerName yourProjectDomain.dev
<Directory "/var/www/html/YOUR_LARAVEL_PROJECT_ROOT/public">
AllowOverride All
Options FollowSymLinks +Indexes
Order allow,deny
Allow from all
</Directory>
</VirtualHost>
And inside /etc/hosts put
127.0.0.1 yourProjectDomain.dev
Then check the permission on /var/www/html and each subdirectory (you can use cd /var/www/html && sudo chmod -R 777 * to set everything as readable, writable and executable).
Then clear the cache of the project (delete all the files inside the bootstrap/cache folder).
Then you should be able to access that project just using yourProjectDomain.dev on every browser inside your pc.