So I happened upon a bit of misfortune recently, as I seem to be unable to run a Direwolf20 server anymore! This is something I have done many times without error (other than lag resulting from my sub-par computer) up until recently. I have a top- notch PC now, but MCForge appears to be running into some sort of problem that is preventing me from running a server now. The bit in question should be below, and I can provide the rest of the error file if need be. If anyone can help me out here, please do! I miss playing with my buddies!
Also, I do not know how to use spoilers, so if someone could inform me in that department as well, I would be grateful.
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2015-05-24 15:32:29 [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.java:48)
at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:17)
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Thanks in advance to anyone who can offer some advice.