💻 에러 메시지com.fasterxml.jackson.databind.exc.InvalidDefinitionException : No serializer found for class com.xxxxxxx.xxxxx.dto.user.ProfileDto and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: com.xxxxxxx.xxxxx.api.response.xxxxxxxxxx["ProfileDto"])     🔎 원인 Jackson으로 데이터를 바인딩하는 과정에서 에러가 났다.  Jack..