sudo nano /etc/apache2/apache2.conf

Find the following code inside the editor:

<Directory /var/www/> 
 Options Indexes FollowSymLinks
 AllowOverride None
 Require all granted
</Directory> 

Change to:

<Directory /var/www/> 
 Options Indexes FollowSymLinks
 AllowOverride All
 Require all granted
</Directory

apache - laravel the requested url was not found on this server - Stack Overflow