Fatal error: Uncaught Error: Class 'League\Fractal\TransformerAbstract' not found in C:\laragon\www\demonstracao\app\Transformers\ContaBancariaTransformer.php:12 Stack trace: #0 {main} thrown in C:\laragon\www\demonstracao\app\Transformers\ContaBancariaTransformer.php on line 12