Stormman3100

I am trying to start a tekkit server for 1.6.4 for me and my friend. I click on the Launch.bat file and I get this: C:UsersChristian_2Desktoptekkit>java -Xmx1G -Xms512M -jar Tekkit.jar nogui Jan 08, 2015 10:18:10 PM net.minecraft.launchwrapper.LogWrapper log INFO: Loading tweak class name cpw.mods.fml.common.launcher.FMLServerTweaker Jan 08, 2015 10:18:10 PM net.minecraft.launchwrapper.LogWrapper log INFO: Using primary tweak class name cpw.mods.fml.common.launcher.FMLServerTweak er Jan 08, 2015 10:18:10 PM net.minecraft.launchwrapper.LogWrapper log INFO: Calling tweak class cpw.mods.fml.common.launcher.FMLServerTweaker 2015-01-08 22:18:10 [iNFO] [ForgeModLoader] Forge Mod Loader version 6.4.49.965 for Minecraft 1.6.4 loading 2015-01-08 22:18:10 [iNFO] [ForgeModLoader] Java is Java HotSpot Client VM, version 1.8.0_25, running on Windows 8.1:x86:6.3, installed at C:Program Files (x86)Javajre1.8.0_25 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun ch.DepLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod appeng.transformer.Ap pEngCore does not have a MCVersion annotation, it may cause issues with this ver sion of Minecraft 2015-01-08 22:18:10 [iNFO] [ForgeModLoader] [AppEng] Core Init 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod calclavia.lib.Calclav iaPluginLoader does not have a MCVersion annotation, it may cause issues with th is version of Minecraft 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun ch.CodeChickenCorePlugin does not have a MCVersion annotation, it may cause issu es with this version of Minecraft 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod cofh.asm.LoadingPlugi n does not have a MCVersion annotation, it may cause issues with this version of Minecraft 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod mods.immibis.microblo cks.coremod.MicroblocksCoreMod does not have a MCVersion annotation, it may caus e issues with this version of Minecraft 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod logisticspipes.asm.Lo gisticsPipesCoreLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod micdoodle8.mods.micco re.MicdoodlePlugin does not have a MCVersion annotation, it may cause issues wit h this version of Minecraft 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod openmods.OpenModsCore Plugin does not have a MCVersion annotation, it may cause issues with this versi on of Minecraft 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun ch.DepLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod universalelectricity. core.UELoader does not have a MCVersion annotation, it may cause issues with thi s version of Minecraft 2015-01-08 22:18:10 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun ch.DepLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft 2015-01-08 22:18:10 [iNFO] [ForgeModLoader] Loading tweak class name cpw.mods.fm l.common.launcher.FMLInjectionAndSortingTweaker 2015-01-08 22:18:10 [iNFO] [ForgeModLoader] Loading tweak class name cpw.mods.fm l.common.launcher.FMLDeobfTweaker 2015-01-08 22:18:10 [iNFO] [ForgeModLoader] Calling tweak class cpw.mods.fml.com mon.launcher.FMLInjectionAndSortingTweaker 2015-01-08 22:18:10 [sEVERE] [ForgeModLoader] Unable to launch java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(Unknown Source) at java.util.ArrayList$Itr.remove(Unknown Source) at net.minecraft.launchwrapper.Launch.launch(Launch.java:114) at net.minecraft.launchwrapper.Launch.main(Launch.java:27) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.j ava:48) at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper. java:17) C:UsersChristian_2Desktoptekkit>pause Press any key to continue . . . I also try to start the Executable Jar File called "Tekkit" but nothing happens other than a file called ForgeModLoader-server-0 and .log.1 appear in the file, but nothing happens after words. What am I doing wrong. If you need more information I can copy and paste whatever you need. Thank You