How to use serialization groups?

[banan11]

I use serialization groups with \@Group  annotation like docs says https://symfony.com/doc/3.4/serializer.html

But my entity is also loaded in front... and it doesn't work there

 

Quote

PHP Fatal error:  Uncaught Doctrine\\Common\\Annotations\\AnnotationException: [Semantical Error] The annotation "@Symfony\\Component\\Serializer\\Annotation\\Groups" in property My\\Cool\\Entity\\Entity::$id does not exist, or could not be auto-loaded.
 

 

I need annotations in backend only so I have tried with serializaiton.yml file placed in module/config/serialization.yml or module/config/admin/serialization.yml but both doesn't work - looks like presta doesn't load it.

How to fix fatal error or force presta to load config from yaml?