Class Magento\Framework\App\ResourceConnection\Proxy does not exist

$img of Class Magento\Framework\App\ResourceConnection\Proxy does not exist$

The solution for this is noted below

sudo chmod 777 -R .
sudo chown www-data: -R .
rm -rf var/cache/* var/page_cache/* var/generation/*
composer install

Try other methods by searching on the site. That is if this doesn’t work