Bringin this over from the shadow pack thread Error while running the event handler: __AlienWall__/control.lua:19: attempt to index field 'create_dentity' (a nil valUe) Appears when getting construction robots to place a blueprint (blueprint is a pair of assembler mk 2s, a passive provider chest, a ...

So i can think of two things this mod needs: a search function for the buying chest (I'm using it with shadow's pack, and it is a pain to find the roboport among all 6 pages i have access to) and to have it output a list of items that lack costs after initializing into a text document (preferably wi...