[RMVX ACE] YAMI'S GUARDIAN SYSTEM - AUTO SUMMON AT START OF BATTLE?

Hi,

Yami doesn't seem to be replying to questions on their blog anymore so I'm asking here.

I'm having some trouble with Yami's Guardian system found here: http://yamiworld.wordpress.com/guardian-series/

My problem is, I'm trying to make a vehicle system similar to Metal Max/Metal Saga where the player can ride around in vehicles and battle in them, but if the vehicle is defeated in battle the actor inside the vehicle jumps out and replaces it in battle. Everything works how I want it to, but I want the vehicles to be summmoned at the start of the battle, before any commands are entered. This is how I'm doing it so far:



However, when I start a battle and continue past the "enemies emerged!" dialogue, I get this error:



I think it's happening because the guardian summon skill doesn't target anyone and I have to specify a target (I've tried all the choices) in the force action event. Can anyone tell me how to fix this or maybe even do what I want in a different way?
I'm not using any other scripts in my project, so there shouldn't be any collisions there.


Thanks.