Fatal error: Uncaught Error: Class "Symfony\Component\CssSelector\Node\AbstractNode" not found in D:\Apache24\www\gs1_taizhou\back\vendor\symfony\css-selector\Node\CombinedSelectorNode.php:24 Stack trace: #0 {main} thrown in D:\Apache24\www\gs1_taizhou\back\vendor\symfony\css-selector\Node\CombinedSelectorNode.php on line 24