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Can't install one self-made mod to server

Posted January 6, 20196 yr

I've made my own custom mod, made for 1.12.2 and have been trying to add it to a private server, it's the ONLY mod in the server besides forge, and every time I go back and re-think the code it gives me the exact same error.

The mod works just fine in singleplayer, the server's crash log:

---- Minecraft Crash Report ----
// Oops.

Time: 1/5/19 9:05 PM
Description: Exception in server tick loop

net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Vanilla Spells 1.12.2 (vanillaspellsmod)
Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/entity/EntityPlayerSP
   at java.lang.Class.getDeclaredConstructors0(Native Method)
   at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
   at java.lang.Class.getConstructor0(Unknown Source)
   at java.lang.Class.newInstance(Unknown Source)
   at net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper.instantiate(SimpleNetworkWrapper.java:166)
   at net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper.registerMessage(SimpleNetworkWrapper.java:159)
   at network.PacketHandler.registerMessages(PacketHandler.java:24)
   at com.vanillaspellsmod.mainRegistry.VanillaSpells.preInit(VanillaSpells.java:52)
   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.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:624)
   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 com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
   at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
   at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
   at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
   at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
   at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
   at com.google.common.eventbus.EventBus.post(EventBus.java:217)
   at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219)
   at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
   at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
   at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
   at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
   at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
   at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
   at com.google.common.eventbus.EventBus.post(EventBus.java:217)
   at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136)
   at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:627)
   at net.minecraftforge.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:99)
   at net.minecraftforge.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:333)
   at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:125)
   at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486)
   at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.entity.EntityPlayerSP
   at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   ... 44 more
Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@5ab9b447 from coremod FMLCorePlugin
   at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:260)
   at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279)
   at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176)
   ... 46 more
Caused by: java.lang.RuntimeException: Attempted to load class bud for invalid side SERVER
   at net.minecraftforge.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:62)
   at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:256)
   ... 48 more

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
   Minecraft Version: 1.12.2
   Operating System: Windows 10 (amd64) version 10.0
   Java Version: 1.8.0_121, Oracle Corporation
   Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
   Memory: 889225752 bytes (848 MB) / 1054867456 bytes (1006 MB) up to 3806855168 bytes (3630 MB)
   JVM Flags: 0 total;
   IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
   FML: MCP 9.42 Powered by Forge 14.23.5.2795 5 mods loaded, 5 mods active
   States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

   | State | ID | Version | Source | Signature |
   |:----- |:---------------- |:------------ |:--------------------------------------- |:---------------------------------------- |
   | LCH | minecraft | 1.12.2 | minecraft.jar | None |
   | LCH | mcp | 9.42 | minecraft.jar | None |
   | LCH | FML | 8.0.99.99 | forge-1.12.2-14.23.5.2795-universal.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
   | LCH | forge | 14.23.5.2795 | forge-1.12.2-14.23.5.2795-universal.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 |
   | LCE | vanillaspellsmod | 0.1 | VanillaSpells0.1(1.12.2).jar | None |

   Loaded coremods (and transformers):
   Profiler Position: N/A (disabled)
   Is Modded: Definitely; Server brand changed to 'fml,forge'
   Type: Dedicated Server (map_server.txt)

It points to a class in my self-made mod, what I think is really important is the part about the packethandler class:

package network;

import net.minecraftforge.fml.common.network.NetworkRegistry;
import net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper;
import net.minecraftforge.fml.relauncher.Side;

public class PacketHandler {

   public static SimpleNetworkWrapper INSTANCE;

   /*private static int ID = 0;

   private static int nextID() {
       return ID++;
   }*/

   public static void registerMessages(String channelName) {
       INSTANCE = NetworkRegistry.INSTANCE.newSimpleChannel(channelName);
       int idx = 0;
   //client -> server
   INSTANCE.registerMessage(PacketToServerUpdateCapability.Handler.class, PacketToServerUpdateCapability.class, idx, Side.SERVER);
       idx++;
   //server -> client
   INSTANCE.registerMessage(PacketToClientUpdatedExperience.Handler.class, PacketToClientUpdatedExperience.class, idx, Side.CLIENT);
       idx++;
   INSTANCE.registerMessage(PacketToClientUpdateCapValue.Handler.class, PacketToClientUpdateCapValue.class, idx, Side.CLIENT);

   }

}

Quote

January 6, 20196 yr

Author

Fixed this problem, on to the next then.

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TileEntity

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Can't install one self-made mod to server

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