[1.8.9] .setBlockTextureName doesn't seem to work

Hello there!

My name is Eric, and this is my first post on the forums.

I am creating my first mod for Minecraft, and I am starting in Minecraft 1.8.9, because I can find a lot of resources on it (plus I don't really like the new combat).

I am attempting to add a texture to my block I've created. The block loads into the game just fine, but the setBlockTextureName() method errors with "undefined".

Here is my code for my block's class:

package com.xand.xandmod.blocks;

import com.xand.xandmod.XandMod;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.creativetab.CreativeTabs;

public class CompCobbleI extends Block {

String name = "compcobblei";

public CompCobbleI() {
	super(Material.rock);
	setUnlocalizedName(XandMod.MODID + "_" + name);
	setCreativeTab(CreativeTabs.tabBlock);
	setBlockTextureName(XandMod.MODID + "_" + name); //My error is here, not with the string inside, but with the method name itself.
}

}

Ive read other topics about it but cannot find a correct answer. Any help is appreciated!

Thank you,

-Eric