Fatal error: Uncaught Error: Interface "pvc\interfaces\html\rules\ContentRuleInterface" not found in I:\www\pvcHtml\src\rules\content_rules\ContentCannotHaveAttributeRule.php:9 Stack trace: #0 {main} thrown in I:\www\pvcHtml\src\rules\content_rules\ContentCannotHaveAttributeRule.php on line 9