package cpw.mods.mockmod;

import net.minecraft.src.Block;
import net.minecraft.src.Material;

public class MockBlock extends Block
{
    public MockBlock(int id)
    {
        super(id,Material.field_1316_v);
    }
}

package cpw.mods.mockmod;

import net.minecraft.src.Block;
import net.minecraft.src.Material;

public class MockBlock extends Block
{
    public MockBlock(int id)
    {
        super(id,Material.field_76259_v);
    }
}

Fix MockBlock compile