thermionicfabricator.recipeBuilder().shape(...) does not support space characters for empty

For example:

.shape(
    "#R#",
    "PMP",
    "GMG"
)
.key('#', item('minecraft:air'))

This works fine when I map # to minecraft:air, but if I try:

.shape(
    " R ",
    "PMP",
    "GMG"
)

and omit the key for the space (expecting it to mean "empty"), it fails.

[SERVER/ERROR] [postInit.forestry:38]:  - key ' ' is not defined

Update
.key('#', item('minecraft:air')) doesn't help, the Thermionic Fabricator doesn't recognize the recipe with empty slots.

the forestry thermionic fabricator does not use the same information as the normal crafting table does. this is not a bug - although it should probably be changed.

the forestry thermionic fabricator does not use the same information as the normal crafting table does. this is not a bug - although it should probably be changed.

But even with that, if you bind the slot to minecraft:air or ItemStack.EMPTY, the craft still doesn’t work - that’s already a bug

    mods.forestry.thermionicFabricator.removeByOutput(item('forestry:thermionic_tubes'))
    mods.forestry.thermionicFabricator.recipeBuilder()
        .fluidInput(fluid('glass') * 500)
        .output(item('forestry:thermionic_tubes') * 4)
        .shape(
            '#R#',
            'PMP',
            'GMG'
        )
        .key('R', ore('ingotRedstoneAlloy'))
        .key('P', ore('dustPyrotheum'))
        .key('M', ore('ingotCopper'))
        .key('G', item('enderio:block_fused_quartz'))
        .key('#', item('minecraft:air'))
        .register()

JEI:

Reality:

can you confirm that this is unrelated to ForestryMC/ForestryMC#2734?

I found a solution — Forestry uses ore(' ') instead of an empty value.

A space character is being passed here

ForestryMC/ForestryMC#2734 has been fixed. Does the issue still happen?

ForestryMC/ForestryMC#2734 has been fixed. Does the issue still happen?

The problem is not in this, but in the fact that if there are empty spaces in the craft, you need to specify it with ore(‘ ’), not with a space

    mods.forestry.thermionicFabricator.recipeBuilder()
        .fluidInput(fluid('glass') * 500)
        .output(tube * 4)
        .shape(
            '#R#',
            'PMP',
            'GMG'
        )
        .key('R', ore('ingotRedstoneAlloy'))
        .key('P', ore('dustPyrotheum'))
        .key('M', material)
        .key('G', item('enderio:block_fused_quartz'))
        .key('#', ore(' ')) // empty slot
        .register()

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thermionicfabricator.recipeBuilder().shape(...) does not support space characters for empty #297

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thermionicfabricator.recipeBuilder().shape(...) does not support space characters for empty #297

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romanfedyniak commented on Apr 4, 2025

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