Any mod that uses methods in ModLoader.class crashes the server

knarf2011 · February 18, 2013

I had a mod(http://www.planetminecraft.com/mod/burning-war-mod-forge/) that I made, and was crashing the server, but not the client. The crash report seemed to point to the cause being related to ModLoader.class, possibly missuse of it.

crash report:

Reveal hidden contents

---- Minecraft Crash Report ----

// My bad.

Time: 2/17/13 9:03 PM

Description: Exception in server tick loop

cpw.mods.fml.common.LoaderException: java.lang.NoSuchMethodError: ModLoader.addArmor(Ljava/lang/String;)I

at cpw.mods.fml.common.LoadController.transition(LoadController.java:130)

at cpw.mods.fml.common.Loader.initializeMods(Loader.java:677)

at cpw.mods.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:94)

at cpw.mods.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:356)

at ho.c(DedicatedServer.java:135)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:458)

at fy.run(SourceFile:849)

Caused by: java.lang.NoSuchMethodError: ModLoader.addArmor(Ljava/lang/String;)I

at BurningWarMod.common.mod_BurningWarMod.load(mod_BurningWarMod.java:159)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:601)

at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:487)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:601)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)

at com.google.common.eventbus.EventBus.post(EventBus.java:268)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:153)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:601)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)

at com.google.common.eventbus.EventBus.post(EventBus.java:268)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:86)

at cpw.mods.fml.common.Loader.initializeMods(Loader.java:676)

... 5 more

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

---------------------------------------------------------------------------------------

-- System Details --

Details:

Minecraft Version: 1.4.7

Operating System: Windows 7 (amd64) version 6.1

Java Version: 1.7.0_03, Oracle Corporation

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

Memory: 1000901784 bytes (954 MB) / 1037959168 bytes (989 MB) up to 1037959168 bytes (989 MB)

JVM Flags: 2 total; -Xmx1024M -Xms1024M

AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

Suspicious classes: FML and Forge are installed

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

FML: MCP v7.26a FML v4.7.32.553 Minecraft Forge 6.6.1.527 4 mods loaded, 4 mods active

mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized

FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized

Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized

BurningWarMod [burning War Mod] (Burning War Mod 1.1.1.zip) Unloaded->Constructed->Pre-initialized->Errored

Profiler Position: N/A (disabled)

Is Modded: Definitely; Server brand changed to 'forge,fml'

Type: Dedicated Server (map_server.txt)

I tried re-wording the code in my main mod class file, but nothing seemed to work. So I tried the same thing with a popular mod that uses ModLoader.class (http://www.planetminecraft.com/mod/146gem-mod-new-armor-new-tools-new-food-new-blocks/), and got a similar crash report, this time when apparently using ModLoader.class to add acheivments.

crash report:

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I used the most recent version of forge to write my mod, to test my mod before compiling, to run the server, and to run the client. The other mod did cause the client to crash, but did not output any file to tell me why.

uyjulian · February 18, 2013

its supposed to

LexManos · February 18, 2013

There are mods out there that are written for ModLoader specifically, these mods usually do not work when you put them on the server as ModLoader does not work on the server, and a modder has to take special care not to invoke any client specific code on the server.

Seems that the mods you've mentioned have not taken that care and are not dedi server compatible.

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Any mod that uses methods in ModLoader.class crashes the server

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