When going to enchant something on a anvil the xp level required is too high. To name something with unbreaking 3 it costs 37 levels to name it.
Comments 5
@Ryan McLaughlin no, this should only affect enchantments and not names. I think it was fixed in one of the 1.12 betas.
i think the wiki says its suposed to be a flat cost for naming... but its been like this since 1.10 i think... so...
Could you confirm which version of the game you are using? This should have been fixed in an earlier version (MCPE-36931).
Not a bug as far as I've heard, this was implemented to limit the number of enchantments on items. This is on every version.