itwadgreen

Hi, I've been having a problem with Level 4 enchants on tools and items, it will not let me enchant any weapon or item past level 4, level 3 works on somethings but when I try to enchant it will either not show up in the anvil or when using the /enchant command it will say *item does not support the enchantment. I've tried efficiency 4 on a pickaxe and axe and it will not work.