Deprecated: SebastianBergmann\Diff\ConfigurationException::__construct(): Implicitly marking parameter $previous as nullable is deprecated, the explicit nullable type must be used instead in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\sebastian\diff\src\Exception\ConfigurationException.php on line 19

Fatal error: Uncaught Error: Class "SebastianBergmann\Diff\InvalidArgumentException" not found in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\sebastian\diff\src\Exception\ConfigurationException.php:17 Stack trace: #0 {main} thrown in D:\Webserver\Apache24\htdocs\laravel\basic\vendor\sebastian\diff\src\Exception\ConfigurationException.php on line 17