java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/WorldClient

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via minecraftforum.net by Unknown author

The stack trace shows which mod caused the problem (in my case it was at com.pahimar.ee3.reference.Textures.<clinit>, so the mod in question is EE3). Remove or reinstall that mod.

Solutions on the web

via GitHub by bear989
, 1 year ago
net/minecraft/client/multiplayer/WorldClient
java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/WorldClient
at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:50)
at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279)
at java.lang.ClassLoader.loadClass(Unknown Source)
at gregtech.common.GT_Proxy.onWorldTickEvent(GT_Proxy.java:1222)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_4_GT_Proxy_onWorldTickEvent_WorldTickEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:620)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

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