Fatal error: Uncaught Error: Class 'Magento\Framework\View\Test\Unit\Layout\BuilderTest' not found in /home/esecureh/public_html/magdemo/vendor/magento/framework/View/Test/Unit/Page/BuilderTest.php:21 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/framework/View/Test/Unit/Page/BuilderTest.php on line 21