Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\Encoder\ContextAwareDecoderInterface" not found in I:\www\picman\vendor\symfony\serializer\Encoder\ChainDecoder.php:25 Stack trace: #0 {main} thrown in I:\www\picman\vendor\symfony\serializer\Encoder\ChainDecoder.php on line 25