Fatal error: Uncaught Error: Class 'Magento\Indexer\Model\ResourceModel\AbstractResource' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-indexer/Test/Unit/Model/ResourceModel/AbstractResourceStub.php:13 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-indexer/Test/Unit/Model/ResourceModel/AbstractResourceStub.php on line 13