Amnesia custom story problem

[ezra627]

I have the same problem,this is the code:
Void OnStart()
{
AddUseItemCallback(string& asName, "Key1", "Doortolvl1", "UsedKeyOnDoor", true);
}

void UsedKeyOnDoor(string &in asItem, string &in asEntity)
{
SetSwingDoorLocked("Doortolvl1", false, true);
PlaySoundAtEntity("", "amb_alert01", "Doortolvl1", 0, false);
RemoveItem("Key1");
}

i looked at the key and door name like 50 times!IT IS EXACTLY THE FREAKING SAME!!!And when i test it,it says "can not use the item this way!"