off the docs (http://peripheralsplusplus.readthedocs.org/en/latest/peripherals/me_bridge/)

retrieve(string itemId, number amount, string or number directionToDeposit)
craft(string itemId, number amount)

trying to run this..

OR

causes...

You're passing "4" and "5" as the id rather than "minecraft:cobblestone" or "minecraft:planks"

oh. well would that not be the items real name and not the ID then?
because when you do the listAll function it returns that as the items name and not the id.
so that could be misleading..

Mojang abstracted item ids a while ago. The ID, on the outermost level, is no longer a number, but a string like "minecraft:stone"

ok, now that makes sense

But you are right, that could be misleading. I'll change it to say ID instead.

👍