Null exception

[salmo]

SmokyNZ, I concur with you that there is something screwy with the actors that gives rise to null exceptions. I'm unsure what the cause is, but here's a code snippet from a script I'm working on. The CheckActors routine was working & keys.Count was returning the number of actor keys, then all of a sudden, it failed & now persistently returns zero even though there are actors in the mission.

public class Mission : AMission
{
private Dictionary<String, AiActor> allActors = new Dictionary<String, AiActor>();

    public override void OnPlaceEnter(Player player, AiActor actor, int placeIndex)
    {
CheckActors();
}

public void CheckActors()
{
        List<string> keys = new List<string>(allActors.Keys);
        sendChatMessageTo(-1, "Keys count=" + keys.Count.ToString(), null);
       // .......
    }

    private void sendChatMessageTo(int army, string msg, object[] parms)
    {   // send a chat message to all players in specified army (1=red; 2=blue)
        List<Player> Players = new List<Player>();
        // on Dedi the server:
        if (GamePlay.gpPlayer() != null)
        {
            if (GamePlay.gpPlayer().Army() == army || army == -1)
                Players.Add(GamePlay.gpPlayer());
        } //rest of the crowd
        if (GamePlay.gpRemotePlayers() != null || GamePlay.gpRemotePlayers().Length > 0)
        {
            foreach (Player p in GamePlay.gpRemotePlayers())
            {
                if (p.Army() == army || army == -1)
                    Players.Add(p);
            }
        }
        if (Players != null && Players.Count > 0)
            GamePlay.gpLogServer(Players.ToArray(), msg, parms);
    }
}