Bug

2013-06-10 16:18:50 [SEVERE] [fml.ItemTracker] FML has detected item discrepancies
2013-06-10 16:18:50 [SEVERE] [fml.ItemTracker] Missing items : {}
2013-06-10 16:18:50 [SEVERE] [fml.ItemTracker] Mismatched items : {343=(Item 343, Type      net.minecraft.item.ItemMinecart, owned by Minecraft, ordinal 2, name null, claimedModId null, Item 343, Type mods.railcraft.common.carts.ItemCartVanilla, owned by Railcraft, ordinal 2, name railcraft.cart.furnace, claimedModId null), 342=(Item 342, Type net.minecraft.item.ItemMinecart, owned by Minecraft, ordinal 1, name null, claimedModId null, Item 342, Type mods.railcraft.common.carts.ItemCartVanilla, owned by Railcraft, ordinal 1, name railcraft.cart.chest, claimedModId null), 407=(Item 407, Type net.minecraft.item.ItemMinecart, owned by Minecraft, ordinal 3, name null, claimedModId null, Item 407, Type mods.railcraft.common.carts.ItemCartVanilla, owned by Railcraft, ordinal 3, name railcraft.cart.tnt, claimedModId null), 328=(Item 328, Type net.minecraft.item.ItemMinecart, owned by Minecraft, ordinal 0, name null, claimedModId null, Item 328, Type mods.railcraft.common.carts.ItemCartVanilla, owned by Railcraft, ordinal 0, name railcraft.cart.basic, claimedModId null)}