I just started recoding my mod to forge, but at the first test install, i got a NullPointerException on login using MultiMC

crash report:

 

 

- Minecraft Version: 1.3.2
- Operating System: Windows 7 (amd64) version 6.1
- Java Version: 1.7.0, Oracle Corporation
- Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
- Memory: 455069248 bytes (433 MB) / 514523136 bytes (490 MB) up to 954466304 bytes (910 MB)
- JVM Flags: 2 total; -Xmx1024m -Xms512m
- LWJGL: 2.8.3
- OpenGL: Intel(R) G45/G43 Express Chipset GL version 2.1.0 - Build 8.15.10.2555, Intel
- Is Modded: Definitely; 'forge,fml'
- Type: Client
- Texture Pack: Default
- Profiler Position: N/A (disabled)

java.lang.NullPointerException
at cpw.mods.fml.common.FMLModContainer.getName(FMLModContainer.java:105)
at cpw.mods.fml.common.Loader.sortModList(Loader.java:236)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:416)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:192)
at net.minecraft.client.Minecraft.a(Minecraft.java:402)
at net.minecraft.client.Minecraft.run(Minecraft.java:734)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT c6e8f06b ----------

 

 

 

I am using forge #193

 

here is the the source:

 

 

Trapped Cake.java

package nb.cake;

import cpw.mods.fml.common.FMLLog;
import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.Mod.Init;
import cpw.mods.fml.common.Mod.PreInit;
import cpw.mods.fml.common.event.FMLPreInitializationEvent;
import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.common.registry.LanguageRegistry;
import java.util.logging.Level;
import net.minecraft.src.Block;
import net.minecraftforge.common.Configuration;
import net.minecraft.src.ItemStack;




@Mod(modid = "trappedcake", name = "Trapped Cakes", version = "0.1")
public class TrappedCake {
    
    public static BlockExplodingCake explodingCake;
    private int id1;
    
    @PreInit
    public void configure(FMLPreInitializationEvent event) {
        event.getModMetadata().version = "0.1";
        Configuration cfg = new Configuration(event.getSuggestedConfigurationFile());
        try {
            cfg.load();
            id1 = cfg.getOrCreateBlockIdProperty("explodingCake", 255).getInt(255);
        } catch(Exception e) {
            FMLLog.log(Level.SEVERE, e, "Trapped Cakes could not load it's configuration.");
        } finally {
            cfg.save();
        }
        
    }
    
    @Init
    public void load() {
        explodingCake = new BlockExplodingCake(id1);
        GameRegistry.registerBlock(explodingCake);
        LanguageRegistry.instance().addStringLocalization("explodingCake.name", "Exploding Cake");
        GameRegistry.addShapelessRecipe(new ItemStack(explodingCake, 1), new Object[] {Block.cake, Block.tnt});
        
    }
    
}

BlockExplodingCake.java

package nb.cake;

import net.minecraft.src.BlockCake;
import net.minecraft.src.World;
import net.minecraft.src.EntityPlayer;
import java.util.ArrayList;
import net.minecraft.src.ItemStack;

public class BlockExplodingCake extends BlockCake {
    
    public BlockExplodingCake(int id) {
        super(id, 121);
        setHardness(0.5F);
        setStepSound(soundClothFootstep);
        setBlockName("explodingCake");
        disableStats();
        setRequiresSelfNotify();
    }

    @Override
    public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9) {
        //explosion code here
        return true;
    }

    @Override
    public void onBlockClicked(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer) {
        // explosion code here
    }
    
    @Override
    public void addCreativeItems(ArrayList itemlist) {
        itemlist.add(new ItemStack(this));
    }
    
}

 

 

 

I am not sure where the error is...

LanguageRegistry.instance().addStringLocalization("explodingCake.name", "en_US", "Exploding Cake");

If you ever post errors, post the log files, not just what you get. Sometimes FML doesnt print the "real" crash report.

there isn't a .log anywhere. I'll try again in a day or so. I think MultiMC replaced my 1.3.2 jar with a 1.3.1 jar

You need an mcmod.info file, I had the same problem here until I added a mcmod.info file into the zip of the mod.

Make sure the

"modid": "NAME",

is right. If I'm not mistaken that is FML's mod list freaking out because it has no name.

mcmod.info

Thanks.

Has since been fixed for note.