How did you even get Logistics Pipes to work?

[iconmaster]

I have a custom modpack, and I'm loading Logistics Pipes onto it, now that there's a stable build out. But here I am, and with any version of LP in my pack, I crash on startup with this error:

java.lang.NullPointerException

at net.minecraft.item.ItemStack.<init>(ItemStack.java:57)

at logisticspipes.recipes.SolderingStationRecipes.loadRecipe(SolderingStationRecipes.java:100)

at logisticspipes.LogisticsPipes.PostLoad(LogisticsPipes.java:379)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:601)

at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:494)

at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:601)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:165)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:601)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:98)

at cpw.mods.fml.common.Loader.initializeMods(Loader.java:695)

at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:206)

at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:448)

at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56)

at net.minecraft.client.Minecraft.run(Minecraft.java:733)

at java.lang.Thread.run(Thread.java:722)

As it turns out, I have the same build of Forge Big Dig uses, and it works fine for them. So my question is, is there an individual mod causing the error? What's going on here?

EDIT: I found the bug! It seems that Buildcraft Hoppers need to enabled, or else the recipe handler will crash when trying to add the recipe for the Nano Hopper, which currently uses Buildcraft hoppers exclusively. I hope they replace this with vanilla ones soon, myself.