generate cookie validation key in frontend/config/main-local.php
chmod 0777 backend/runtime
chmod 0777 backend/web/assets
chmod 0777 frontend/runtime
chmod 0777 frontend/web/assets
chmod 0755 yii
chmod 0755 yii_test
... initialization completed.
The index.php file is present inside the folder advanced/advanced/frontend/index.php. But it is not displaying while localhost/advanced/advanced/frontend/index.php.