update

data-final-fixes.lua

@@ -3,8 +3,7 @@ require("zirconium-recipe-updates-lds")
 require("zirconium-recipe-final-stacking")
 require("zirconium-recipe-final-rrr")
 
-
-local util = require("__bzzirconium__.data-util");
+local util = require("data-util");
 
 if mods["space-exploration"] then 
   -- Organization

data-updates.lua

@@ -5,7 +5,7 @@ require("map-gen-preset-updates")
 require("omni")
 require("strange-matter")
 
-local util = require("__bzzirconium__.data-util");
+local util = require("data-util");
 
 util.add_minable_result("simple-entity", "rock-huge", {name="zircon", amount_min = 15, amount_max=25})
 util.add_minable_result("simple-entity", "sand-rock-big", {name="zircon", amount_min = 15, amount_max=25})

data-util.lua

@@ -89,9 +89,14 @@ function util.add_effect(technology_name, effect)
   local technology = data.raw.technology[technology_name]
   if technology then
     if not technology.effects then technology.effects = {} end
+    if effect and effect.type == "unlock-recipe" then
+      if not data.raw.recipe[effect.recipe] then
+        return
+      end
       table.insert(technology.effects, effect)
     end
   end
+end
 
 -- remove recipe unlock effect from a given technology
 function util.remove_recipe_effect(technology_name, recipe_name)