Minecraft Forums

java.lang.IllegalArgumentException: Cannot create a fluidstack from a null fluid
at net.minecraftforge.fluids.FluidStack.<init>(FluidStack.java:36)
at net.minecraftforge.fluids.FluidStack.<init>(FluidStack.java:67)
at tconstruct.smeltery.gui.SmelteryGui.func_146979_b(SmelteryGui.java:151)
at net.minecraft.client.gui.inventory.GuiContainer.func_73863_a(GuiContainer.java:119)
at tconstruct.smeltery.gui.SmelteryGui.func_73863_a(SmelteryGui.java:64)
at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1061)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1001)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

Outdated mod(s).