Cant Start Crashlanding server ''unable to launch forgemodloader''


#1

So first i had the problem i couldnt start any single player mods because it couldnt launch FML. To fix that I downloaded Java 7 instead of 8. It all works now, But whenever i try to start a server it says unable to launch FML. I tried to port forward the server, I tried hammachi I uninstalled all java program’s and even deleted minecraft and every modded version of minecraft and reinstalled it after. Can someone please help me?

For the people who like to see the ‘‘error’’.

C:\Users\Dirk\Desktop\CrashLandingServer>java -Xms2048m -Xmx2048m -XX:PermSize=
28m -jar FTBServer-1.6.4-965.jar nogui
Java HotSpot™ 64-Bit Server VM warning: ignoring option PermSize=128m; suppo
t was removed in 8.0
okt 25, 2014 12:20:32 AM net.minecraft.launchwrapper.LogWrapper log
INFO: Loading tweak class name cpw.mods.fml.common.launcher.FMLServerTweaker
okt 25, 2014 12:20:32 AM net.minecraft.launchwrapper.LogWrapper log
INFO: Using primary tweak class name cpw.mods.fml.common.launcher.FMLServerTwea
er
okt 25, 2014 12:20:32 AM net.minecraft.launchwrapper.LogWrapper log
INFO: Calling tweak class cpw.mods.fml.common.launcher.FMLServerTweaker
2014-10-25 00:20:32 [INFO] [ForgeModLoader] Forge Mod Loader version 6.4.49.965
for Minecraft 1.6.4 loading
2014-10-25 00:20:32 [INFO] [ForgeModLoader] Java is Java HotSpot™ 64-Bit Ser
er VM, version 1.8.0_25, running on Windows 8.1:amd64:6.3, installed at C:\Prog
am Files\Java\jre1.8.0_25
2014-10-25 00:20:32 [WARNING] [ForgeModLoader] The coremod net.minecraftforge.l
x.sortfix.CorePlugin does not have a MCVersion annotation, it may cause issues
ith this version of Minecraft
2014-10-25 00:20:32 [WARNING] [ForgeModLoader] The coremod codechicken.core.lau
ch.DepLoader does not have a MCVersion annotation, it may cause issues with thi
version of Minecraft
2014-10-25 00:20:32 [WARNING] [ForgeModLoader] The coremod appeng.transformer.A
pEngCore does not have a MCVersion annotation, it may cause issues with this ve
sion of Minecraft
2014-10-25 00:20:32 [INFO] [ForgeModLoader] [AppEng] Core Init
2014-10-25 00:20:33 [WARNING] [ForgeModLoader] The coremod codechicken.core.lau
ch.CodeChickenCorePlugin does not have a MCVersion annotation, it may cause iss
es with this version of Minecraft
2014-10-25 00:20:33 [WARNING] [ForgeModLoader] The coremod cofh.asm.LoadingPlug
n does not have a MCVersion annotation, it may cause issues with this version o
Minecraft
2014-10-25 00:20:33 [WARNING] [ForgeModLoader] The coremod codechicken.nei.asm.
EICorePlugin does not have a MCVersion annotation, it may cause issues with thi
version of Minecraft
2014-10-25 00:20:33 [WARNING] [ForgeModLoader] The coremod openblocks.OpenBlock
CorePlugin does not have a MCVersion annotation, it may cause issues with this
ersion of Minecraft
2014-10-25 00:20:33 [WARNING] [ForgeModLoader] The coremod openmods.OpenModsCor
Plugin does not have a MCVersion annotation, it may cause issues with this vers
on of Minecraft
2014-10-25 00:20:33 [WARNING] [ForgeModLoader] The coremod squeek.spiceoflife.a
m.ASMPlugin does not have a MCVersion annotation, it may cause issues with this
version of Minecraft
2014-10-25 00:20:33 [WARNING] [ForgeModLoader] The coremod tconstruct.preloader
TConstructLoaderContainer does not have a MCVersion annotation, it may cause is
ues with this version of Minecraft
2014-10-25 00:20:33 [INFO] [TCon-Preloader] Scalpel. Suction. Lumber axe. CLEAR
zap
2014-10-25 00:20:33 [INFO] [TCon-Preloader] Constructing preloader (Modules: [t
onstruct.preloader.AccessTransformers, tconstruct.preloader.ASMInterfaceRepair]

2014-10-25 00:20:33 [INFO] [TCon-Preloader] Found a properties file. Attempting
load…
2014-10-25 00:20:33 [INFO] [TCon-Preloader] Loaded properties successfully. Usi
g specified settings.
2014-10-25 00:20:33 [INFO] [ForgeModLoader] Loading tweak class name cpw.mods.f
l.common.launcher.FMLInjectionAndSortingTweaker
2014-10-25 00:20:33 [INFO] [ForgeModLoader] Loading tweak class name cpw.mods.f
l.common.launcher.FMLDeobfTweaker
2014-10-25 00:20:33 [INFO] [ForgeModLoader] Calling tweak class cpw.mods.fml.co
mon.launcher.FMLInjectionAndSortingTweaker
2014-10-25 00:20:33 [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.
ava:48)
at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper
java:17)

C:\Users\Dirk\Desktop\CrashLandingServer>pause

Thanks for taking the time to read all of this.
Greetings from The Netherlands.

Dane


#2

add the following java 8 fix mod to your mods folder. This is done automatically on the beta launcher but not on the server
http://ftb.cursecdn.com/FTB2/maven/net/minecraftforge/lex/legacyjavafixer/1.0/legacyjavafixer-1.0.jar


#4

It worked thank you!


#5

I have been looking for quite some time for this fix. Thank you very much!!!


#6

i have the same error and i am blown away that it was as simple as that to fix. Thank You!!!


#7

This, is the first thing that has actually fixed any minecraft related problem I have had. Thank you so much for posting this, I have been searching for three hours trying to fix this and this instantly worked.
Fizeks


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