java.lang.ClassCastException

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    • java.lang.ClassCastException: net.minecraft.client.multiplayer.WorldClient cannot be cast to net.minecraft.world.WorldServer at mods.railcraft.common.items.firestone.ItemFirestoneRefined.func_180614_a(ItemFirestoneRefined.java:157) at net.minecraft.item.ItemStack.func_179546_a(ItemStack.java:145) at net.minecraft.client.multiplayer.PlayerControllerMP.func_187099_a(PlayerControllerMP.java:463) at net.minecraft.client.Minecraft.func_147121_ag(Minecraft.java:1518) at net.minecraft.client.Minecraft.func_184117_aA(Minecraft.java:2184) at net.minecraft.client.Minecraft.func_184118_az(Minecraft.java:1961) at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1749) at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1055) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:371) at net.minecraft.client.main.Main.main(SourceFile:124) 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:497) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
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