Slot 0 already occupied when using a config file[1.6.4]

[c-ab-o-o-s-e]

I understand that 1.7 gets rid of the need for ID's, but this is being targeted towards people that still on 1.6.4. I just finished going over the tutorial on the forums here and when I go to run it I always get slot 0 is already occupied when trying to add the second block.

 

The code:

 

@Mod(modid="decor", name="Decor", version="0.0.1 - Dev")
@NetworkMod(clientSideRequired=true, serverSideRequired=false)
public class Decor{

        // The instance of your mod that Forge uses.
        @Instance("decor")
        public static Decor instance;
       
        // Says where the client and server 'proxy' code is loaded.
        @SidedProxy(clientSide="bdvl.decor.client.ClientProxy", serverSide="bdvl.decor.CommonProxy")
        public static CommonProxy proxy;
       
        @EventHandler
        public void preInit(FMLPreInitializationEvent event) {
                Configuration config = new Configuration(event.getSuggestedConfigurationFile());
                
                config.load();
                int panelBlockID = config.getBlock("Panel", 200).getInt();
                int decorGlassID = config.getBlock("DecorGlass", 201).getInt();
                int clockLampID = config.getBlock("ClockLamp", 202).getInt();
                
                config.save();
        }
       
        @EventHandler
        public void load(FMLInitializationEvent event) {
                proxy.registerRenderers();

			panel = new Panel(panelBlockID, Material.cloth).setHardness(3.0F).setUnlocalizedName("Panel").setCreativeTab(CreativeTabs.tabBlock).setTextureName("decor:panel");
                decorGlass = new decorGlass(decorGlassID, Material.glass, false).setUnlocalizedName("decorglass").setCreativeTab(CreativeTabs.tabBlock);
                clocklamp = new ClockLamp(clockLampID, Material.glass).setUnlocalizedName("clocklamp").setCreativeTab(CreativeTabs.tabDecorations).setTextureName("decor:clocklamp");
                
                GameRegistry.registerBlock(decorGlass, "decorglass");
                GameRegistry.registerBlock(panel, "panel");
                GameRegistry.registerBlock(clocklamp, "clocklamp");
                
                LanguageRegistry.addName(decorGlass, "Decorative Glass");
                LanguageRegistry.addName(panel, "Panel");
                LanguageRegistry.addName(clocklamp, "Clock Lamp");
                
        }
       
        @EventHandler
        public void postInit(FMLPostInitializationEvent event) {
                // Stub Method
        }
        public static int panelBlockID;
        public static int decorGlassID;
        public static int clockLampID;
        
        public static Block panel;
        public static Block decorGlass;
        public static Block clocklamp;
       
}

 

[c-ab-o-o-s-e]

Ahh was it because there was 2 different declerations of the ID fields one being public static int panelBlockID; and the other being in the preInit int panelBlockID.

[c-ab-o-o-s-e]

How come its assigning values such:

panelBlockID = 800

decorGlassID = 4095

clockLampID =  4094

 

When it should be 200, 201, 202 respectively? Is it because of the dev environment?

[c-ab-o-o-s-e]

ahhh ok I knew of the items being reserved but didn't realize that there were ones reserved for terrain