Using the doc, I can't open a chest with a computer

[Alexis-Fayeulle]

Using the doc
I can't open a chest with a computer

How to reproduce :

1. Install minecraft 1.12.2 forge and CC: Tweaked with curseforge
2. Create world in creative
3. Get a chest and Advanced computer
4. Put chest and computer next to each other
5. Get on https://tweaked.cc/generic_peripheral/inventory.html
6. Scroll a little bit and get this code*
7. Paste the code in a program
8. Run

*The code

local chest = peripheral.find("minecraft:chest")
for slot, item in pairs(chest.list()) do
  print(("%d x %s in slot %d"):format(item.count, item.name, slot))
end

What i did wrong?
Why i can't open inventory like the doc?
Is my computer missing something?

[Wojbie]

Sadly 1.12.2 forge CC:T don't have inventory mechanics on its own. You needed to install Plethora mod to add that.

Note in doc it says it was added in version 1.94.0

[Alexis-Fayeulle]

Thanks =)