Fatal error: Uncaught Error: Class 'baseCalc' not found in D:\Server\Apache24\htdocs\zentaopms\module\metric\calc\product\scale\count_of_wait_feedback_in_product.php:21 Stack trace: #0 {main} thrown in D:\Server\Apache24\htdocs\zentaopms\module\metric\calc\product\scale\count_of_wait_feedback_in_product.php on line 21