Bug GUI

[XerioTW]

make gui slot 9 with coal ore named "Test" with lore "&7Quantité: %{_count.D}%":
add 1 to {_count.D}
update the player's inventory

I'm trying to update my menu that I created, what I want is when I left-click on the item I can select a number and see that quantity in the item description. Simply, I'm a beginner in skript and I haven't found how to do it, the only clue I found is this but I have an error "inventory of the player is not a blockstate".

 

[DanRub]

If I understand, you can do something like this:

set metadata tag "Menu" of player to chest inventory with 1 row named "&l&7Menu"
set slot 0 of metadata tag "Menu" of player to coal name "Test" with lore "Count: {count::coal::%uuid of player%}"
open metadata tag "Menu" of player to player

on inventory click:
    if event-inventory = (metadata tag "Menu" of player):
        if index of event-slot = 0:
            close inventory of player
            send "Pick a number" to player
            set {nmpicking::%uuid of player%} to true
           
on chat:
    if {nmpicking::%uuid of player%} = true:
        cancel event
        set {count::coal::%uuid of player%} to message
        send "You picked number %message%" to player
        set {nmpicking::%uuid of player%} to false

Its just raw code i just made in 2 minutes, you can inspire and change it.
Hope it helps.