error java.util.ConcurrentModificationException

[CrashBits]

Please Help for this error im don't know because this problem occurs

 

 

java.util.ConcurrentModificationException

at com.google.common.collect.HashBiMap$Itr.checkForConcurrentModification(HashBiMap.java:339)

at com.google.common.collect.HashBiMap$Itr.hasNext(HashBiMap.java:345)

at net.minecraft.client.audio.SoundManager.func_148610_e(SoundManager.java:428)

at net.minecraft.client.audio.SoundHandler.func_147689_b(SourceFile:182)

at net.minecraft.client.Minecraft.func_71385_j(Minecraft.java:1377)

at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1821)

at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1022)

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:345)

at net.minecraft.client.main.Main.main(SourceFile:120)

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 net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

[LexManos]

One or more of the mods you have installed is playing a sound incorrectly and crashing. Sadly these issues are hard to track down. If you can reproduce it you can try removing mods one by one until it stops.