When the stone furnace is lowered, the following error pops up：

Error while running event tnd-linked-factory::on_built_entity (ID 6)
tnd-linked-factory/control.lua:597: attempt to index local 'furnaceRecipe' (a nil value)
stack traceback:
tnd-linked-factory/control.lua:597: in function 'handler'
tnd-linked-factory/control.lua:459: in function 'updateEntity'
tnd-linked-factory/control.lua:850: in function <tnd-linked-factory/control.lua:849>

When the stone furnace is lowered, the following error pops up：

Error while running event tnd-linked-factory::on_built_entity (ID 6)
tnd-linked-factory/control.lua:597: attempt to index local 'furnaceRecipe' (a nil value)
stack traceback:
tnd-linked-factory/control.lua:597: in function 'handler'
tnd-linked-factory/control.lua:459: in function 'updateEntity'
tnd-linked-factory/control.lua:850: in function <tnd-linked-factory/control.lua:849>

I figured out what the reason is, I forgot to set the product for the stone furnace, it's ok.

I have add a conditional check to avoid unrecoverable error when furnaceRecipe is nil

What does this mod do? I already have linked pipe and linked chest, they seem to work by themselves.