shission

whats the difference? And how do i fix it? Im sorry for my lack of knowledge I know people like me make people like you frustrated

ok first off, thank you for helping so far. Now, I got the mods loaded onto the server and i can see them and put them in my inventory but when i try to use them, they dissapear from my inventory. anyone ideas why?

Can someone tell me what happened? [08:33:53] [server thread/INFO]: Starting minecraft server version 1.7.10 [08:33:57] [server thread/INFO]: Loading properties [08:33:57] [server thread/INFO]: Default game type: CREATIVE [08:33:57] [server thread/INFO]: Generating keypair [08:33:57] [server thread/INFO]: Starting Minecraft server on *:25565 [08:33:57] [server thread/INFO]: Preparing level "My World copy" [08:34:11] [server thread/INFO]: Preparing start region for level 0 [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/WARN]: Skipping BlockEntity with id RailcraftTrackTile [08:34:12] [server thread/INFO]: Done (14.955s)! For help, type "help" or "?" [08:34:42] [user Authenticator #1/INFO]: UUID of player austin_shission is 805d43e6-c244-45f2-8ce1-6298ce2a5a58 [08:34:43] [server thread/INFO]: austin_shission[/192.168.1.132:49337] logged in with entity id 339 at (-191.48077929291455, 71.04581090877382, 96.95358591395296) [08:34:43] [server thread/INFO]: austin_shission joined the game [08:35:06] [server thread/ERROR]: Encountered an unexpected exception java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft at TMIConfig.isMultiplayer(TMIConfig.java:87) ~[TMIConfig.class:?] at TMIForgeContainer.playerInteract(TMIForgeContainer.java:48) ~[TMIForgeContainer.class:?] at cpw.mods.fml.common.eventhandler.ASMEventHandler_1_TMIForgeContainer_playerInteract_PlayerInteractEvent.invoke(.dynamic) ~[?:?] at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51) ~[ASMEventHandler.class:?] at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122) ~[EventBus.class:?] at net.minecraftforge.event.ForgeEventFactory.onPlayerInteract(ForgeEventFactory.java:67) ~[ForgeEventFactory.class:?] at net.minecraft.server.management.ItemInWorldManager.func_73078_a(ItemInWorldManager.java:353) ~[mx.class:?] at net.minecraft.network.NetHandlerPlayServer.func_147346_a(NetHandlerPlayServer.java:554) ~[nh.class:?] at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:60) ~[jo.class:?] at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:9) ~[jo.class:?] at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212) ~[ej.class:?] at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165) ~[nc.class:?] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659) ~[MinecraftServer.class:?] at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:335) ~[lt.class:?] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547) ~[MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427) [MinecraftServer.class:?] at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [li.class:?] Caused by: java.lang.ClassNotFoundException: net.minecraft.client.Minecraft at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:188) ~[launchwrapper-1.9.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:306) ~[?:1.6.0_65] at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ~[?:1.6.0_65] ... 17 more Caused by: java.lang.RuntimeException: Attempted to load class bao for invalid side SERVER at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:50) ~[forge-1.7.10-10.13.0.1180-universal.jar:?] at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:276) ~[launchwrapper-1.9.jar:?] at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:174) ~[launchwrapper-1.9.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:306) ~[?:1.6.0_65] at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ~[?:1.6.0_65] ... 17 more [08:35:06] [server thread/ERROR]: This crash report has been saved to: /Users/Austin/Desktop/Newserver/./crash-reports/crash-2014-08-23_08.35.06-server.txt [08:35:06] [server thread/INFO]: Stopping server [08:35:06] [server thread/INFO]: Saving players [08:35:06] [server thread/INFO]: Saving worlds [08:35:06] [server thread/INFO]: Saving chunks for level 'My World copy'/Overworld [08:35:06] [server thread/INFO]: Saving chunks for level 'My World copy'/Nether [08:35:06] [server thread/INFO]: Saving chunks for level 'My World copy'/The End

thank you very much its working. where is the mods folder so i can add mods to the server?

I am trying to set up a server and one of the steps to mod it with forge is to download the universal forge zip file that has all the .class files and use them to replace the current files. However I am always getting a .jar file when i download and when i extract it all the .class files are not there where do i get the zip file? I am using a mac