I get an error when attempting to run my site on my localhost server. I've done this many times in the past: extract my site from git, point to my local copy of the database, configure localhost database in local.xml, and clear the 'var' directory to remove cache, sessions, etc.
However, now, I get the following error. Any clues to help my track down my configuration local hosting issue?
Fatal error: Class 'Mage_Core_Model_Resource_Db_Abstract' not found in D:\Ampps...\shop\app\code\core\Mage\Core\Model\Mysql4\Abstract.php on line 36
Note: the file path is edited (with ...) to obfuscate the website details. And, the file definitely does exist at the path reported in the error message.