Okay. Update on the situation. I have been doing some research/trial and error and I found out that instead of the "setHarvestLevel("pickaxe", 0)" line, they instead are two separate lines now. One being ".harvestLevel(0)" and" .harvestTool(ToolType harvestTool)". I understand the .harvestLevel part, but I don't know what it's asking for in the ToolType and harvestTool sections. I have put in things such as PickaxeItem and "pickaxe" but nothing seems to work.