Fatal error: Uncaught Error: Class "Negotiation\Negotiator" not found in C:\xampp\htdocs\BK\bateriasec\vendor\friendsofsymfony\rest-bundle\Negotiation\FormatNegotiator.php:25 Stack trace: #0 {main} thrown in C:\xampp\htdocs\BK\bateriasec\vendor\friendsofsymfony\rest-bundle\Negotiation\FormatNegotiator.php on line 25