When I run the launch.bat file this is what I get
C:UsersErikDesktopTekkit server>"C:Program Files (x86)Javajre1.8.0_31bin
java.exe" -Xmx1G -Xms1G -jar Tekkit.jar nogui
Feb 20, 2015 2:14:11 PM net.minecraft.launchwrapper.LogWrapper log
INFO: Loading tweak class name cpw.mods.fml.common.launcher.FMLServerTweaker
Feb 20, 2015 2:14:11 PM net.minecraft.launchwrapper.LogWrapper log
INFO: Using primary tweak class name cpw.mods.fml.common.launcher.FMLServerTweak
er
Feb 20, 2015 2:14:11 PM net.minecraft.launchwrapper.LogWrapper log
INFO: Calling tweak class cpw.mods.fml.common.launcher.FMLServerTweaker
2015-02-20 14:14:11 [iNFO] [ForgeModLoader] Forge Mod Loader version 6.4.49.965
for Minecraft 1.6.4 loading
2015-02-20 14:14:11 [iNFO] [ForgeModLoader] Java is Java HotSpot Client VM,
version 1.8.0_31, running on Windows 8.1:x86:6.3, installed at C:Program Files
(x86)Javajre1.8.0_31
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun
ch.DepLoader does not have a MCVersion annotation, it may cause issues with this
version of Minecraft
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod appeng.transformer.Ap
pEngCore does not have a MCVersion annotation, it may cause issues with this ver
sion of Minecraft
2015-02-20 14:14:11 [iNFO] [ForgeModLoader] [AppEng] Core Init
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod calclavia.lib.Calclav
iaPluginLoader does not have a MCVersion annotation, it may cause issues with th
is version of Minecraft
2015-02-20 14:14:11 [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
2015-02-20 14:14:11 [iNFO] [sTDERR] Warning: version of ForgeMultipart-universal
-1.6.4-, 1.0.0.250 is newer than request 1.0.0.244
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod cofh.asm.LoadingPlugi
n does not have a MCVersion annotation, it may cause issues with this version of
Minecraft
2015-02-20 14:14:11 [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
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod invtweaks.forge.asm.F
MLPlugin does not have a MCVersion annotation, it may cause issues with this ver
sion of Minecraft
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod logisticspipes.asm.Lo
gisticsPipesCoreLoader does not have a MCVersion annotation, it may cause issues
with this version of Minecraft
2015-02-20 14:14:11 [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
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod codechicken.nei.asm.N
EICorePlugin does not have a MCVersion annotation, it may cause issues with this
version of Minecraft
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod openmods.OpenModsCore
Plugin does not have a MCVersion annotation, it may cause issues with this versi
on of Minecraft
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun
ch.DepLoader does not have a MCVersion annotation, it may cause issues with this
version of Minecraft
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod mrtjp.projectred.comp
atibility.CompatibilityCorePlugin does not have a MCVersion annotation, it may c
ause issues with this version of Minecraft
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod universalelectricity.
core.UELoader does not have a MCVersion annotation, it may cause issues with thi
s version of Minecraft
2015-02-20 14:14:11 [WARNING] [ForgeModLoader] The coremod codechicken.core.laun
ch.DepLoader does not have a MCVersion annotation, it may cause issues with this
version of Minecraft
2015-02-20 14:14:11 [iNFO] [ForgeModLoader] Loading tweak class name cpw.mods.fm
l.common.launcher.FMLInjectionAndSortingTweaker
2015-02-20 14:14:11 [iNFO] [ForgeModLoader] Loading tweak class name cpw.mods.fm
l.common.launcher.FMLDeobfTweaker
2015-02-20 14:14:11 [iNFO] [ForgeModLoader] Calling tweak class cpw.mods.fml.com
mon.launcher.FMLInjectionAndSortingTweaker
2015-02-20 14:14:11 [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:UsersErikDesktopTekkit server>pause
Press any key to continue . . .
