Hi I'm testing my mod using the wrapped Minecraft in the Forge source. But when Minecraft was initializing it crashed!

 

I take a look on the crash report and i found out there was a block registration problem. But when i take a look at my mod code, its like there is no problem.

 

The lines where the error happened is line 137

 

here's the crash report:

 

 

---- Minecraft Crash Report ----

// Ooh. Shiny.

 

Time: 9/12/14 4:39 PM

Description: There was a severe problem during mod loading that has caused the g

ame to fail

 

cpw.mods.fml.common.LoaderException: java.lang.IllegalArgumentException: The nam

e pixelblocks:redBlock has been registered twice, for pixelblocks.blocks.Blocks.

BeigeColoredBlock@63b0c4 and pixelblocks.blocks.Blocks.BisqueColoredBlock@1fac3b

a.

at cpw.mods.fml.common.registry.GameRegistry.registerBlock(GameRegistry.java:22

2)

at cpw.mods.fml.common.registry.GameRegistry.registerBlock(GameRegistry.java:17

1)

at cpw.mods.fml.common.registry.GameRegistry.registerBlock(GameRegistry.java:16

0)

at pixelblocks.PixelBlocks.preInit(PixelBlocks.java:137)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java

:513)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(Synchronized

EventHandler.java:47)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.ja

va:208)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java

:187)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(Synchronized

EventHandler.java:47)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.jav

a:118)

at cpw.mods.fml.common.Loader.preinitializeMods(Loader.java:512)

at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.

java:239)

at net.minecraft.client.Minecraft.startGame(Minecraft.java:522)

at net.minecraft.client.Minecraft.run(Minecraft.java:892)

at net.minecraft.client.main.Main.main(Main.java:112)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

Caused by: java.lang.IllegalArgumentException: The name pixelblocks:redBlock has

been registered twice, for pixelblocks.blocks.Blocks.BeigeColoredBlock@63b0c4 a

nd pixelblocks.blocks.Blocks.BisqueColoredBlock@1fac3ba.

at cpw.mods.fml.common.registry.FMLControlledNamespacedRegistry.add(FMLControll

edNamespacedRegistry.java:376)

at cpw.mods.fml.common.registry.GameData.registerBlock(GameData.java:817)

at cpw.mods.fml.common.registry.GameData.registerBlock(GameData.java:792)

at cpw.mods.fml.common.registry.GameRegistry.registerBlock(GameRegistry.java:21

2)

... 40 more

 

 

A detailed walkthrough of the error, its code path and all known details is as f

ollows:

--------------------------------------------------------------------------------

-------

 

-- System Details --

Details:

Minecraft Version: 1.7.2

Operating System: Windows 7 (x86) version 6.1

Java Version: 1.8.0_11, Oracle Corporation

Java VM Version: Java HotSpot Client VM (mixed mode), Oracle Corporation

Memory: 891888616 bytes (850 MB) / 1060372480 bytes (1011 MB) up to 1060372480

bytes (1011 MB)

JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M

AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

FML: MCP v9.03 FML v7.2.211.1121 Minecraft Forge 10.12.2.1121 4 mods loaded, 4

mods active

mcp{9.03} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-ini

tialized

FML{7.2.211.1121} [Forge Mod Loader] (forgeSrc-1.7.2-10.12.2.1121.jar) Unloaded

->Constructed->Pre-initialized

Forge{10.12.2.1121} [Minecraft Forge] (forgeSrc-1.7.2-10.12.2.1121.jar) Unloade

d->Constructed->Pre-initialized

pixelblocks{1.0} [PixelBlocks Mod] (bin) Unloaded->Constructed->Errored

 

 

 

here are the code in line 137:

 

 

GameRegistry.registerBlock(BisqueColoredBlock, "BisqueColoredBlock".substring(10)).setCreativeTab(tabWhiteBlocks);

 

 

Mind if I see your entire base mod class?

 

 

package pixelblocks;

 

import net.minecraft.block.Block;

import net.minecraft.block.material.Material;

import net.minecraft.creativetab.CreativeTabs;

import net.minecraft.item.Item;

import net.minecraft.item.ItemStack;

import pixelblocks.blocks.Blocks.AliceBlueBlock;

import pixelblocks.blocks.Blocks.AlizarinCrimsonColoredBlock;

import pixelblocks.blocks.Blocks.AmberColoredBlock;

import pixelblocks.blocks.Blocks.AmethystColoredBlock;

import pixelblocks.blocks.Blocks.AntiqueWhiteColoredBlock;

import pixelblocks.blocks.Blocks.AquamarineColoredBlock;

import pixelblocks.blocks.Blocks.AsparagusColoredBlock;

import pixelblocks.blocks.Blocks.AzureColoredBlock;

import pixelblocks.blocks.Blocks.BeigeColoredBlock;

import pixelblocks.blocks.Blocks.BisqueColoredBlock;

import pixelblocks.blocks.Blocks.BistreColoredBlock;

import pixelblocks.proxy.CommonProxy;

import cpw.mods.fml.common.Mod;

import cpw.mods.fml.common.Mod.EventHandler;

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.event.FMLPostInitializationEvent;

import cpw.mods.fml.common.event.FMLPreInitializationEvent;

import cpw.mods.fml.common.registry.GameRegistry;

 

@Mod(modid = "pixelblocks", name = "PixelBlocks Mod", version = "1.0")

 

public class PixelBlocks {

 

@SidedProxy(clientSide="pixelblocks.proxy.ClientProxy", serverSide="pixelblocks.proxy.CommonProxy")

public static CommonProxy proxy;

 

//Declares blocks in Minecraft

public static Block AliceBlueColoredBlock;

public static Block AlizarinCrimsonColoredBlock;

public static Block AmberColoredBlock;

public static Block AmethystColoredBlock;

public static Block AntiqueWhiteColoredBlock;

public static Block AquamarineColoredBlock;

public static Block AsparagusColoredBlock;

public static Block AzureColoredBlock;

public static Block BeigeColoredBlock;

public static Block BisqueColoredBlock;

public static Block BistreColoredBlock;

 

//Creative Tabs

public static CreativeTabs tabRedBlocks = new CreativeTabs("tabRedBlocks") {

@Override

public Item getTabIconItem() {

return new ItemStack(AlizarinCrimsonColoredBlock).getItem();

}

};

 

public static CreativeTabs tabYellowBlocks = new CreativeTabs("tabYellowBlocks") {

@Override

public Item getTabIconItem() {

return new ItemStack(AmberColoredBlock).getItem();

}

};

 

public static CreativeTabs tabGreenBlocks = new CreativeTabs("tabGreenBlocks") {

@Override

public Item getTabIconItem() {

return new ItemStack(AsparagusColoredBlock).getItem();

}

};

 

public static CreativeTabs tabBlueBlocks = new CreativeTabs("tabBlueBlocks") {

@Override

public Item getTabIconItem() {

return new ItemStack(AzureColoredBlock).getItem();

}

};

 

public static CreativeTabs tabVioletBlocks = new CreativeTabs("tabVioletBlocks") {

@Override

public Item getTabIconItem() {

return new ItemStack(AmethystColoredBlock).getItem();

}

};

 

public static CreativeTabs tabBrownBlocks = new CreativeTabs("tabBrownBlocks") {

public Item getTabIconItem() {

return new ItemStack(BistreColoredBlock).getItem();

}

};

 

public static CreativeTabs tabWhiteBlocks = new CreativeTabs("tabWhiteBlocks") {

@Override

public Item getTabIconItem() {

return new ItemStack(AliceBlueColoredBlock).getItem();

}

};

 

@EventHandler

    public void preInit(FMLPreInitializationEvent event) {

 

//Defines Blocks in Minecraft

 

//Red Tab

AlizarinCrimsonColoredBlock = new AlizarinCrimsonColoredBlock(Material.rock).setBlockTextureName("pixelblocks:AlizarinCrimson");

 

//Yellow Tab

AmberColoredBlock = new AmberColoredBlock(Material.rock).setBlockTextureName("pixelblocks:Amber");

 

//Green Tab

AsparagusColoredBlock = new AsparagusColoredBlock(Material.rock).setBlockTextureName("pixelblocks:Asparagus");

 

//Blue Tab

AquamarineColoredBlock = new AquamarineColoredBlock(Material.rock).setBlockTextureName("pixelblocks:Aquamarine");

AzureColoredBlock = new AzureColoredBlock(Material.rock).setBlockTextureName("pixelblocks:Azure");

 

//Violet Tab

AmethystColoredBlock = new AmethystColoredBlock(Material.rock).setBlockTextureName("pixelblocks:Amethyst");

 

//White Tab

AliceBlueColoredBlock = new AliceBlueBlock(Material.rock).setBlockTextureName("pixelblocks:AliceBlue");

AntiqueWhiteColoredBlock = new AntiqueWhiteColoredBlock(Material.rock).setBlockTextureName("pixelblocks:AntiqueWhite");

BeigeColoredBlock = new BeigeColoredBlock(Material.rock).setBlockTextureName("pixelblocks:Beige");

BisqueColoredBlock = new BisqueColoredBlock(Material.rock).setBlockTextureName("pixelblocks:Bisque");

 

//Brown Tab

BistreColoredBlock = new BistreColoredBlock(Material.rock).setBlockTextureName("pixelblocks.Bistre");

 

GameRegistry.registerBlock(AliceBlueColoredBlock, "AliceBlueColoredBlock".substring(1)).setCreativeTab(tabWhiteBlocks);

GameRegistry.registerBlock(AlizarinCrimsonColoredBlock, "AlizarinCrimsonColoredBlock".substring(2)).setCreativeTab(tabRedBlocks);

GameRegistry.registerBlock(AmberColoredBlock, "AmberColoredBlock".substring(3)).setCreativeTab(tabYellowBlocks);

GameRegistry.registerBlock(AmethystColoredBlock, "AmethystColoredBlock".substring(4)).setCreativeTab(tabVioletBlocks);

GameRegistry.registerBlock(AntiqueWhiteColoredBlock, "AntiqueWhiteColoredBlock".substring(5)).setCreativeTab(tabWhiteBlocks);

GameRegistry.registerBlock(AquamarineColoredBlock, "AquamarineColoredBlock".substring(6)).setCreativeTab(tabBlueBlocks);

GameRegistry.registerBlock(AsparagusColoredBlock, "AsparagusColoredBlock".substring(7)).setCreativeTab(tabGreenBlocks);

GameRegistry.registerBlock(AzureColoredBlock, "AzureColoredBlock".substring().setCreativeTab(tabBlueBlocks);

GameRegistry.registerBlock(BeigeColoredBlock, "BeigeColoredBlock".substring(9)).setCreativeTab(tabWhiteBlocks);

GameRegistry.registerBlock(BisqueColoredBlock, "BisqueColoredBlock".substring(10)).setCreativeTab(tabWhiteBlocks);

GameRegistry.registerBlock(BistreColoredBlock, "BistreColoredBlock".substring(11)).setCreativeTab(tabBrownBlocks);

}

 

@EventHandler

public void init(FMLInitializationEvent event) {

proxy.registerRenderers();

}

 

@EventHandler

public void postInit(FMLPostInitializationEvent event) {

 

}

 

}

 

 

Thanks!

 

I used substring because i want to know how many blocks i registered

Look closely, what i plan to do is to make 86 solid color blocks and i used substring in the block registration because i want to know how many blocks i made (Like making a ordered list).

You could all read this in the crash report.

And the game crashes if you register 2 things with the same ID.

The problem is fixed right now