Wordpress error about cache

Question

I am getting following error on my WordPress website.

Warning: require_once(/home/username/public_html/example.com/site/wp-includes/class-wp-object-cache.php): failed to open stream: No such file or directory in /home/username/public_html/example.com/site/wp-includes/cache.php on line 12

Answer 1

This kind of problem arises due to interrupted WordPress update process. You should replace core files with fresh one. Just download latest WordPress from official site http://wodpress.org/ and upload them on your website.

Just care about following files & folders. They should keep as it is.

1. wp-config.php file
2. wp-content folder
3. .htaccess

We recommended to take full backup (files-folder & database) before applying above changes.