Fatal error: Uncaught Error: Class "TheSeer\Tokenizer\Exception" not found in C:\www\Apache24\htdocs\agenda-dif\vendor\theseer\tokenizer\src\NamespaceUriException.php:4 Stack trace: #0 {main} thrown in C:\www\Apache24\htdocs\agenda-dif\vendor\theseer\tokenizer\src\NamespaceUriException.php on line 4