Fatal error: Uncaught Error: Interface "Rubix\ML\CrossValidation\Metrics\Metric" not found in C:\xampp\htdocs\londoncityroom\vendor\rubix\ml\src\CrossValidation\Metrics\SMAPE.php:30 Stack trace: #0 {main} thrown in C:\xampp\htdocs\londoncityroom\vendor\rubix\ml\src\CrossValidation\Metrics\SMAPE.php on line 30