ITS SLOVED A LONG TIME AGO!

No one knows the problem?

Bump.

Hmm...

Who could have predicted that using the same package and class name as another file could cause issues?

Something in NEI is trying to call a method from your class that isn't there.

Here's an example of the class you need to include in your mod to hide items from NEI:

 

package the_fireplace.unlogic.compat.nei;

import net.minecraft.item.ItemStack;
import net.minecraftforge.oredict.OreDictionary;
import the_fireplace.unlogic.unbase;
import the_fireplace.unlogic.config.UnLogicConfigValues;
import codechicken.nei.api.API;
import codechicken.nei.api.IConfigureNEI;
import codechicken.nei.api.ItemInfo;
import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.Optional;

@Optional.Interface(iface = "codechicken.nei.api.API", modid = "NotEnoughItems")
public class NEIUnLogicConfig implements IConfigureNEI {

@Optional.Method(modid="NotEnoughItems")
@Override
public String getName() {
	return unbase.class.getAnnotation(Mod.class).name();
}

@Optional.Method(modid="NotEnoughItems")
@Override
public String getVersion() {
	return unbase.class.getAnnotation(Mod.class).version();
}

@Optional.Method(modid="NotEnoughItems")
@Override
public void loadConfig() {
	API.hideItem(new ItemStack(unbase.BlazeCake));
	API.hideItem(new ItemStack(unbase.ChocolateCake));
	API.hideItem(new ItemStack(unbase.QCrop, 1, OreDictionary.WILDCARD_VALUE));
	API.hideItem(new ItemStack(unbase.DepletionFurnaceOn));
}
}

 

It is important that the class name be NEI[insert mod name here]Config

Just to clarify what The_Fireplace said (which is 100% correct) nei scans all mods loaded for a class named

NEI[some name]Config and calls the "loadConfig()" method within it.

 

For this to work you need to add nei to your workspace as a library.

Lol, i sloved this 4 mounts ago by myself, but thanks anyways.

you shouldn't delete the main post because other people could have to same problem, at least put in what you did to fix it.