Fatal error: Uncaught Error: Class 'Magento\Framework\Code\Generator\Io' not found in /home/esecureh/public_html/magdemo/dev/tests/unit/framework/autoload.php:15 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/dev/tests/unit/framework/autoload.php on line 15