Title. I have tried

Import : mods.harvestcrafttweaker.HarvestCraftTweaker;
import : mods.harvestcrafttweaker.HarvestCraftTweaker;

and

Import mods.harvestcrafttweaker.HarvestCraftTweaker;
import mods.harvestcrafttweaker.HarvestCraftTweaker;

All do not function, and give an error.

If this is dead, remove it.