[1.10.2] Dimension Created is only void

Hello Forge Community, I created a Dimension and when I spawn in it it is only void. I don't know why. I have shown code for my chunk provider class. Please tell me if anything else is needed.

package com.geometrically.gm.worldGeneration;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

import com.geometrically.biome.GMBiomes;
import net.minecraft.block.BlockFalling;
import net.minecraft.entity.EnumCreatureType;
import net.minecraft.init.Biomes;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.ChunkPos;
import net.minecraft.world.World;
import net.minecraft.world.biome.Biome;
import net.minecraft.world.chunk.Chunk;
import net.minecraft.world.chunk.ChunkPrimer;
import net.minecraft.world.chunk.IChunkGenerator;

public class AlolaChunkGen implements IChunkGenerator {


    private final World worldObj;
    private Biome[] biomesForGeneration;
    private final Random rand;
    private final World world;
    public Biome[] biomesToGenerate = {GMBiomes.ALOLAN_BIOME, Biomes.DEFAULT};

    public AlolaChunkGen(World world, long seed) {
        super();
        worldObj = world;
        worldObj.setSeaLevel(64);
        this.world = world;
        this.rand = new Random(seed);
    }

    @Override
    public Chunk provideChunk(int x, int z) {
        ChunkPrimer chunkprimer = new ChunkPrimer();

        this.biomesForGeneration = this.biomesToGenerate.clone();
        Chunk chunk = new Chunk(this.worldObj, chunkprimer, x, z);

        chunk.generateSkylightMap();
        return chunk;
    }

    @Override
    public void populate(int x, int z) {
        BlockFalling.fallInstantly = true;
        int i = x * 16;
        int j = z * 16;
        BlockPos blockpos = new BlockPos(i, 0, j);
        Biome biome = this.world.getBiome(blockpos.add(16, 0, 16));
        this.rand.setSeed(this.world.getSeed());
        long k = this.rand.nextLong() / 2L * 2L + 1L;
        long l = this.rand.nextLong() / 2L * 2L + 1L;
        this.rand.setSeed((long)x * k + (long)z * l ^ this.world.getSeed());
        boolean flag = false;
        ChunkPos chunkpos = new ChunkPos(x, z);

        net.minecraftforge.event.ForgeEventFactory.onChunkPopulate(true, this, this.world, this.rand, x, z, flag);
    }

    @Override
    public boolean generateStructures(Chunk chunkIn, int x, int z) {
        return false;
    }

    @Override
    public List<Biome.SpawnListEntry> getPossibleCreatures(EnumCreatureType creatureType, BlockPos pos) {
        return new ArrayList();
    }

    @Override
    public BlockPos getStrongholdGen(World worldIn, String structureName, BlockPos position) {
        return null;
    }

    @Override
    public void recreateStructures(Chunk chunkIn, int x, int z) {

    }

}