Fatal error: Uncaught Error: Class 'CMarkdownParser' not found in /var/www/html/yii/build/commands/markdown/MarkdownParser.php:3 Stack trace: #0 /var/www/html/yii/build/commands/markdown/Markdown.php(3): require_once() #1 {main} thrown in /var/www/html/yii/build/commands/markdown/MarkdownParser.php on line 3