Fatal error: Uncaught Error: Class 'JsonSchema\Constraints\BaseConstraint' not found in C:\Apache24\htdocs\vendor\justinrainbow\json-schema\src\JsonSchema\Validator.php:23 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\vendor\justinrainbow\json-schema\src\JsonSchema\Validator.php on line 23