I updated my Mod from 1.6.4, works fine in eclipse so I wanted to test it in a real Minecraft copy.

 

When I try to open the creativeTab with the blocks (I only have blocks) Minecraft chrashes:

 

java.lang.NullPointerException: Rendering item
at net.minecraft.item.ItemStack.func_77960_j(ItemStack.java:231)
at net.minecraft.client.renderer.entity.RenderItem.renderItemIntoGUI(RenderItem.java:406)
at net.minecraft.client.renderer.entity.RenderItem.func_82406_b(RenderItem.java:548)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_147051_a(GuiContainerCreative.java:940)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_146976_a(GuiContainerCreative.java:771)
at net.minecraft.client.gui.inventory.GuiContainer.func_73863_a(GuiContainer.java:89)
at net.minecraft.client.renderer.InventoryEffectRenderer.func_73863_a(SourceFile:30)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_73863_a(GuiContainerCreative.java:649)
at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1109)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:984)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:873)
at net.minecraft.client.main.Main.main(SourceFile:103)
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)

 

 

When I spawn the item with

/give xTeNNoXx tennox_assemblymod:normal

it is rendered like an item:

 

 

And when I try to place it, this error comes up:

 

java.lang.ArrayIndexOutOfBoundsException: -1
at net.minecraft.item.ItemStack.func_77943_a(ItemStack.java:138)
at net.minecraft.client.multiplayer.PlayerControllerMP.func_78760_a(PlayerControllerMP.java:376)
at net.minecraft.client.Minecraft.func_147121_ag(Minecraft.java:1445)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1952)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:956)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:873)
at net.minecraft.client.main.Main.main(SourceFile:103)
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)

 

Hi

 

My Forge 1.7.2 version is a lot less obfuscated than yours so I can't see the functions causing the problem.

 

My guess is that your Item (ItemBlock) hasn't been registered properly.  I haven't done that in 1.7.2 yet so I'm stuck there.

 

-TGG

Hi

 

My Forge 1.7.2 version is a lot less obfuscated than yours so I can't see the functions causing the problem.

 

My guess is that your Item (ItemBlock) hasn't been registered properly.  I haven't done that in 1.7.2 yet so I'm stuck there.

 

-TGG

 

I think you got something wrong. The crashed occur in the real Minecraft, completely obfuscated and shit. The decompiled one in Eclipse is running perfectly fine.

 

I could recreate the second error like this:

 

TestMod:

@Mod(modid = "tennox_test", version = "0.1")
public class Test {

Block test;

@EventHandler
public void init(FMLInitializationEvent event) {
	test = new BlockTest(Material.rock).setBlockName("tennox_test");
	GameRegistry.registerBlock(test, "tennox_test");
}
}

BlockTest:

class BlockChameleon extends Block {
protected BlockChameleon(Material material) {
	super(material);
}
}

 

 

ERROR:

Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:154) ~[itemStack.class:?]
at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:424) ~[itemInWorldManager.class:?]
at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:596) ~[NetHandlerPlayServer.class:?]
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74) ~[C08PacketPlayerBlockPlacement.class:?]
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122) ~[C08PacketPlayerBlockPlacement.class:?]
at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:242) ~[NetworkManager.class:?]
at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:190) ~[NetworkSystem.class:?]

 

 

What am I missing? some block/item registering in 1.7?

Do all your registering stuff in preInit (FMLPreInitializationEvent)

According to your crashlog, Item.getIdFromItem(this.field_151002_e) is returning with a -1 for the block ID for that ITEM. So, yeah your item in not registered with a block properly.

Do all your registering stuff in preInit (FMLPreInitializationEvent)

 

That's the solution. Thanks you very much!