Can't create an array of objects

Development Programming & Scripting
2

Hi Guys! I’m trying to create an array of objects but I don’t know what is wrong, can you help me?

It’s an array composed of Actors. I have this class “Participant”, it’s an actor and when I create this, i got errors:

     UPROPERTY(BluprintReadOnly, EditAnywhere, Category = "Points")

              TArray<AParticipant> participants;

Can you guys help me?