Error with composer update does not comply with psr-4 autoloading standard. Skipping

I have this error when i run composer update

Class MercadoPago\AdvancedPayments\AdvancedPayment located in C:/xampp/htdocs/vendor/mercadopago/dx-php/src/MercadoPago\Entities\AdvancedPayments\AdvancedPayment.php does not comply with psr-4 autoloading standard. Skipping.

how is it solved?

via Chebli Mohamed