Hello.

 

I have one problem, that everytime when I am on a server and then switch from surface to the nether, a ClassNotFoundException occurs, on Client in SP everything works fine.

 

I'm using Forge 1.7.2-10.12.1.1103.

 

Here is the error and the code:

 

Failed to handle packet for /62.227.178.175:24974
net.minecraft.util.ReportedException: Ticking player
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:355) ~[mm.class:?]
at net.minecraft.network.NetHandlerPlayServer.func_147347_a(NetHandlerPlayServer.java:300) ~[mx.class:?]
at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(SourceFile:137) ~[ir.class:?]
at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(SourceFile: ~[ir.class:?]
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:197) ~[ef.class:?]
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165) [ms.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:643) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:326) [lj.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:531) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:669) [kx.class:?]
Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft
at minecraftplaye.primevalforest.event.PlayerDimensionEventHook.changeDimension(PlayerDimensionEventHook.java:31) ~[PlayerDimensionEventHook.class:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler_35_PlayerDimensionEventHook_changeDimension_PlayerChangedDimensionEvent.invoke(.dynamic) ~[?:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51) ~[ASMEventHandler.class:?]
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122) ~[EventBus.class:?]
at cpw.mods.fml.common.FMLCommonHandler.firePlayerChangedDimensionEvent(FMLCommonHandler.java:544) ~[FMLCommonHandler.class:?]
at net.minecraft.server.management.ServerConfigurationManager.transferPlayerToDimension(ServerConfigurationManager.java:468) ~[ld.class:?]
at net.minecraft.server.management.ServerConfigurationManager.func_72356_a(ServerConfigurationManager.java:443) ~[ld.class:?]
at net.minecraft.entity.player.EntityPlayerMP.func_71027_c(EntityPlayerMP.java:534) ~[mm.class:?]
at net.minecraft.entity.Entity.func_70030_z(Entity.java:363) ~[qn.class:?]
at net.minecraft.entity.EntityLivingBase.func_70030_z(EntityLivingBase.java:193) ~[rh.class:?]
at net.minecraft.entity.Entity.func_70071_h_(Entity.java:318) ~[qn.class:?]
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1558) ~[rh.class:?]
at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:289) ~[xl.class:?]
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:301) ~[mm.class:?]
... 10 more
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.Minecraft
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:99) ~[launchwrapper-1.9.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_05]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_05]
at minecraftplaye.primevalforest.event.PlayerDimensionEventHook.changeDimension(PlayerDimensionEventHook.java:31) ~[PlayerDimensionEventHook.class:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler_35_PlayerDimensionEventHook_changeDimension_PlayerChangedDimensionEvent.invoke(.dynamic) ~[?:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51) ~[ASMEventHandler.class:?]
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122) ~[EventBus.class:?]
at cpw.mods.fml.common.FMLCommonHandler.firePlayerChangedDimensionEvent(FMLCommonHandler.java:544) ~[FMLCommonHandler.class:?]
at net.minecraft.server.management.ServerConfigurationManager.transferPlayerToDimension(ServerConfigurationManager.java:468) ~[ld.class:?]
at net.minecraft.server.management.ServerConfigurationManager.func_72356_a(ServerConfigurationManager.java:443) ~[ld.class:?]
at net.minecraft.entity.player.EntityPlayerMP.func_71027_c(EntityPlayerMP.java:534) ~[mm.class:?]
at net.minecraft.entity.Entity.func_70030_z(Entity.java:363) ~[qn.class:?]
at net.minecraft.entity.EntityLivingBase.func_70030_z(EntityLivingBase.java:193) ~[rh.class:?]
at net.minecraft.entity.Entity.func_70071_h_(Entity.java:318) ~[qn.class:?]
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1558) ~[rh.class:?]
at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:289) ~[xl.class:?]
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlFailed to handle packet for /62.227.178.175:26144
net.minecraft.util.ReportedException: Ticking player
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:355) ~[mm.class:?]
at net.minecraft.network.NetHandlerPlayServer.func_147347_a(NetHandlerPlayServer.java:300) ~[mx.class:?]
at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(SourceFile:137) ~[ir.class:?]
at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(SourceFile: ~[ir.class:?]
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:197) ~[ef.class:?]
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165) [ms.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:643) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:326) [lj.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:531) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:669) [kx.class:?]
Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft
at minecraftplaye.primevalforest.event.PlayerDimensionEventHook.changeDimension(PlayerDimensionEventHook.java:31) ~[PlayerDimensionEventHook.class:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler_35_PlayerDimensionEventHook_changeDimension_PlayerChangedDimensionEvent.invoke(.dynamic) ~[?:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51) ~[ASMEventHandler.class:?]
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122) ~[EventBus.class:?]
at cpw.mods.fml.common.FMLCommonHandler.firePlayerChangedDimensionEvent(FMLCommonHandler.java:544) ~[FMLCommonHandler.class:?]
at net.minecraft.server.management.ServerConfigurationManager.transferPlayerToDimension(ServerConfigurationManager.java:468) ~[ld.class:?]
at net.minecraft.server.management.ServerConfigurationManager.func_72356_a(ServerConfigurationManager.java:443) ~[ld.class:?]
at net.minecraft.entity.player.EntityPlayerMP.func_71027_c(EntityPlayerMP.java:534) ~[mm.class:?]
at net.minecraft.entity.Entity.func_70030_z(Entity.java:363) ~[qn.class:?]
at net.minecraft.entity.EntityLivingBase.func_70030_z(EntityLivingBase.java:193) ~[rh.class:?]
at net.minecraft.entity.Entity.func_70071_h_(Entity.java:318) ~[qn.class:?]
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1558) ~[rh.class:?]
at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:289) ~[xl.class:?]
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:301) ~[mm.class:?]
... 10 more
[23:18:03] [server thread/ERROR]: Encountered an unexpected exception
net.minecraft.util.ReportedException: Ticking entity
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:626) ~[MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:326) ~[lj.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:531) ~[MinecraftServer.class:?]
at net.minecraft..

 

 

And here the code:

 

package minecraftplaye.primevalforest.event;

import minecraftplaye.primevalforest.achievement.PFAchievementPage;
import minecraftplaye.primevalforest.blocks.PFBlocks;
import minecraftplaye.primevalforest.configuration.PFConfigurationIDs;
import net.minecraft.client.Minecraft;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.stats.AchievementList;
import cpw.mods.fml.common.eventhandler.EventPriority;
import cpw.mods.fml.common.eventhandler.SubscribeEvent;
import cpw.mods.fml.common.gameevent.PlayerEvent.PlayerChangedDimensionEvent;

public class PlayerDimensionEventHook
{

    /**
     * Checks if the player changes the dimension!
     * 
     * @param event The MCForge PlayerChangedDimensionEvent
     */
@SubscribeEvent(priority = EventPriority.NORMAL)
    public void changeDimension(PlayerChangedDimensionEvent event)
    {
    	if(event.player != null)
    	{
    		if(event.player instanceof EntityPlayer) // neeeded?
    		{
    			EntityPlayer player = (EntityPlayer)event.player;
    			
    			if(Minecraft.getMinecraft().thePlayer.getStatFileWriter().hasAchievementUnlocked(AchievementList.portal))
    			{
    				if(event.fromDim == -1 && event.toDim == 0)
    				{
    					if(!(Minecraft.getMinecraft().thePlayer.getStatFileWriter().hasAchievementUnlocked(PFAchievementPage.forgottenSapling)))
    					{
    						player.inventory.addItemStackToInventory(new ItemStack(PFBlocks.portSapling));
    						player.addExperience(50);
    						player.triggerAchievement(PFAchievementPage.forgottenSapling);
    					}
    				}
    				else if(event.toDim == PFConfigurationIDs.primevalForestDimID)
    				{
    					if(!(Minecraft.getMinecraft().thePlayer.getStatFileWriter().hasAchievementUnlocked(PFAchievementPage.portalCreation)))
    					{
    						player.addExperienceLevel(10);
    						player.triggerAchievement(PFAchievementPage.portalCreation);
    					}
    				}
    			}
    		}
    	}
    }
}

 

 

Bektor

What could he use instead? or does he need to go over @SideOnly(Side.CLIENT)? He's a friend of mine so i'm kinda asking for him

I'm going to say that to him ^^ Thanks diesiebe07 (und Gute Nacht)

The ChangeDimensionEvent is server-side only.

To get the "StatisticsFile", which controls the achievements, from the player, cast to EntityPlayerMP (which is save, because its server-code) and call func_147099_x, which gives you the StatisticsFile.

Then you can call hasAchievementUnlocked on that.

Ok, thanks.

I think its now fixed. (Well I didn't test it yet, but I will test it today, so that if that doesn't fix this issue, I will reply here back...)

Ok, everything works fine now.