Possess and UnPossess not working

Development Programming & Scripting
1

Hi
I have a player that i want to spawn a device then possess it. I’m currently spawning the device and then UnPossess the player and Possess the device, however when I try possesing the device it throws an exception error:

Exception thrown at 0x00007FF9FA5DDAFA (UE4Editor - Engine.dll) in UE4Editor.exe: 0xC0000005 : Access violation reading location 0x0000000000000000.

Both player and device is using the same controller
My code is:

 if (Drone)
    	{
    		UWorld* world = GetWorld();
    		if (world)
    		{
    
    			FActorSpawnParameters spawnParams;
    			spawnParams.Owner = this;
    
    			FVector SpawnLocation = DeviceSpawnPoint->GetComponentLocation();
    			FRotator SpawnRotation = DeviceSpawnPoint->GetComponentRotation();
    			world->SpawnActor<ACharacter>(Device, SpawnLocation, SpawnRotation, spawnParams);
    
    			AController* SavedController = GetController();
    			SavedController->UnPossess();
    			SavedController->Possess(Cast<ACharacter>(Device));
    		}
    	}

Thank you

2

you are trying to possess Device but you need to possess the newly spawned actor

  if (Drone)
         {
             UWorld* world = GetWorld();
             if (world)
             {
     
                 FActorSpawnParameters spawnParams;
                 spawnParams.Owner = this;
     
                 FVector SpawnLocation = DeviceSpawnPoint->GetComponentLocation();
                 FRotator SpawnRotation = DeviceSpawnPoint->GetComponentRotation();
                 ACharacter* NewActor = world->SpawnActor<ACharacter>(Device, SpawnLocation, SpawnRotation, spawnParams);
     
                 AController* SavedController = GetController();
                 SavedController->UnPossess();
                 SavedController->Possess(NewActor);
             }
         }
3

Thank you I ended up doing it a completely different way but this makes sense