[1.7.10] WorldChunkManager erroring

Hey there,

I'm having an error with the WorldChunkManager constructor. Here is my code:

package com.EmsyThorne.Main;

import net.minecraft.world.WorldProvider;

import net.minecraft.world.biome.BiomeGenBase;

import net.minecraft.world.biome.WorldChunkManager;

import net.minecraft.world.chunk.IChunkProvider;

public class WorldProviderPurity extends WorldProvider {

public void registerWorldChunkManager(){

this.worldChunkMgr = new WorldChunkManager();

this.dimensionId = MainRegistry.dimensionIdPurity;

}

public IChunkProvider createChunkProvider(){

return new ChunkProviderPurity(worldObj, worldObj.getSeed(), true);

}

@Override

public String getDimensionName() {

return "Purity Dimension";

}

}

Now, the error I get is for this line:

this.worldChunkMgr = new WorldChunkManager();

And the constructor is apparently not visible. When adding in the arguments as you are supposed to, I am given another error telling me to remove the arguments. Slight paradox.

Thanks for any help