I have no errors in eclipse but when I run the game, I keep getting this error:

 

cpw.mods.fml.common.LoaderException: java.lang.NullPointerException
at cpw.mods.fml.common.registry.GameRegistry.registerBlock(GameRegistry.java:246)
at cpw.mods.fml.common.registry.GameRegistry.registerBlock(GameRegistry.java:220)
at cpw.mods.fml.common.registry.GameRegistry.registerBlock(GameRegistry.java:196)
at Falconry.common.Falconry.Init(Falconry.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:485)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)
at com.google.common.eventbus.EventBus.post(EventBus.java:268)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:140)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)
at com.google.common.eventbus.EventBus.post(EventBus.java:268)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:83)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:657)
at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:207)
at net.minecraft.client.Minecraft.startGame(Minecraft.java:456)
at net.minecraft.client.MinecraftAppletImpl.startGame(MinecraftAppletImpl.java:44)
at net.minecraft.client.Minecraft.run(Minecraft.java:744)
at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.NullPointerException
at cpw.mods.fml.common.registry.GameRegistry.registerBlock(GameRegistry.java:239)
... 34 more
--- END ERROR REPORT 9e0706f4 ----------

 

Here is my main mod file:

package Falconry.common;

import net.minecraft.block.Block;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityEggInfo;
import net.minecraft.entity.EntityList;
import net.minecraft.entity.EnumCreatureType;
import net.minecraft.item.Item;
import net.minecraft.world.biome.BiomeGenBase;
import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.Mod.Init;
import cpw.mods.fml.common.Mod.Instance;
import cpw.mods.fml.common.SidedProxy;
import cpw.mods.fml.common.event.FMLInitializationEvent;
import cpw.mods.fml.common.network.NetworkMod;
import cpw.mods.fml.common.network.NetworkRegistry;
import cpw.mods.fml.common.network.NetworkMod.SidedPacketHandler;
import cpw.mods.fml.common.registry.EntityRegistry;
import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.common.registry.LanguageRegistry;


@Mod(modid = "SilentAssassin8_Falconry", name = "Falconry", version = "1.0")
@NetworkMod(clientSideRequired = true, serverSideRequired = false, clientPacketHandlerSpec = @SidedPacketHandler(channels = {"Falconry"}, packetHandler = ClientPacketHandler.class), serverPacketHandlerSpec = @SidedPacketHandler(channels = {"Falconry"}, packetHandler = ServerPacketHandler.class))

public class Falconry {

public static Block BlockControlStation;

@Instance
public static Falconry instance = new Falconry();
private GuiHandler guiHandler = new GuiHandler();



@SidedProxy(clientSide = "Falconry.client.ClientProxyFalconry", serverSide = "Falconry.common.CommonProxyFalconry")
public static CommonProxyFalconry proxy;

static int startEntityId = 300;


@Init
public void Init(FMLInitializationEvent event) {

	proxy.registerRenderThings();

	EntityRegistry.registerModEntity(EntityRedTailedHawk.class, "RedTailedHawk", 1, this, 80, 3, true);
	EntityRegistry.addSpawn(EntityRedTailedHawk.class, 10, 2, 3, EnumCreatureType.creature, BiomeGenBase.forest, BiomeGenBase.desert, BiomeGenBase.desertHills);

	GameRegistry.registerTileEntity(TileControlStation.class, "tileEntityControlStation");
	GameRegistry.registerBlock(BlockControlStation, "BlockControlStation");

	LanguageRegistry.instance().addStringLocalization("entity.SilentAssassin8_Falconry.RedTailedHawk.name","Red-Tailed Hawk");
	LanguageRegistry.addName(BlockControlStation, "Control Station");

	NetworkRegistry.instance().registerGuiHandler(this, guiHandler);

	registerEntityEgg(EntityRedTailedHawk.class, 0x000000, 0xEB1313);

	BlockControlStation = new BlockControlStation(9000, 0).setBlockName("BlockControlStation");

}

public static int getUniqueEntityId() {

		do {
			startEntityId++;
		}
		while(EntityList.getStringFromID(startEntityId) != null);

		return startEntityId;
}	
public static void registerEntityEgg(Class<? extends Entity> entity, int primaryColor, int secondaryColor) {
	int id = getUniqueEntityId();
	EntityList.IDtoClassMapping.put(id, entity);
	EntityList.entityEggs.put(id, new EntityEggInfo(id, primaryColor, secondaryColor));	
}
}

 

I know that it has to do something with line 51 < GameRegistry.registerBlock(BlockControlStation, "BlockControlStation"); > but I don't know what to do to fix it. Any help would be greatly appreciated.

you didnt intialized your block.

there are a lot of tutorials about this.

just search for them.

I have same error and ı m begginer for modding.

 

my main code is here

 

http://paste.minecraftforge.net/view/617882fd

 

and this is crash report

 

http://paste.minecraftforge.net/view/81eed469

Im fixed it but i getting same crash again why ?

 

moy code http://paste.minecraftforge.net/view/f0276025

 

and my crash screen

 

http://paste.minecraftforge.net/view/024ac11d

what does it mean my naming a String. How can ı fix it ?

what does it mean my naming a String. How can ı fix it ?

 

Your mistake is in this line:

 

LanguageRegistry.addName("talipBlock", "Talip Block");

 

Where you do

 

"talipBlock"

 

When in quotation marks ("..."), a type is called a String. What you are doing is naming a String. This is not what you should do, which is naming the Object (Block) that you are naming. In this your code should look something like this:

 

LanguageRegistry.addName(talipBlock, "Talip Block");

 

In that code you are making a reference to the

 

public static Block talipBlock;

 

which is what you want to do.

 

 

edit:

Learn java.

 

This is something that is really recommended before you start modding.

what does it mean my naming a String. How can ı fix it ?

 

Your mistake is in this line:

 

LanguageRegistry.addName("talipBlock", "Talip Block");

 

Where you do

 

"talipBlock"

 

When in quotation marks ("..."), a type is called a String. What you are doing is naming a String. This is not what you should do, which is naming the Object (Block) that you are naming. In this your code should look something like this:

 

LanguageRegistry.addName(talipBlock, "Talip Block");

 

In that code you are making a reference to the

 

public static Block talipBlock;

 

which is what you want to do.

 

 

edit:

Learn java.

 

This is something that is really recommended before you start modding.

 

Thanks for your help. I have already started but i new.