Minecraft Version

1.18.2

KubeJS Version

1802.5.5-build.569

Rhino Version

1802.2.1-build.255

Architectury Version

4.11.93

Forge/Fabric Version

Forge - 40.2.17

Describe your issue

Hi,
I tried to get NBT data from an item :

Item.of('immersiveengineering:coresample', '{mineralInfo:[{mineral:"immersiveengineering:mineral/lapis"}]}')

To put a tooltip specifically on this item with this:

tooltip.addAdvanced('immersiveengineering:coresample', (item, advanced, text) => { if (item.nbt?.mineralInfo[0].mineral.match("immersiveengineering:mineral/lapis")) { if (!tooltip.shift) { text.add(1, [Text.of('Hold ').gold(), Text.of('Shift ').yellow(), Text.of('to see more info.').gold()]) } else { text.add(1, Text.of('§5Ores').bold(true)) text.add(2, Text.of('§380% Lapis Lazuli')) text.add(3, Text.of('§315% Sulfur')) text.add(4, Text.of('§305% Fluorite')) text.add(5, Text.of('§5Spoils').bold(true)) text.add(6, Text.of('§3Cobblestone')) text.add(7, Text.of('§3Gravel')) } } })

It works when you launch the modpack, but as soon as you reload the textures it crashes.

Thanks in advance :

Crash report/logs

https://hastebin.com/share/zibupiwope.php

Something (probably your recipe viewer) is attempting to get a tooltip for that item from an ItemStack with no nbt data.
This causes item.nbt to be undefined, so the optional property mineralInfo is also undefined. Then you try to get the 0th element from that, however that fails because ?.mineralInfo returned undefined.

You can solve this by adding a check for if item.nbt?.mineralInfo != undefined before trying to access anything else from that tag.