My friends and I are playing on a pixelmon server that I'm hosting off of my pc. We want to update our current version of pixelmon (7.06) to the new version (7.07) but when I replace the old mod with the new mod the server starts and then crashes right away.


Here is the crash report.


---- Minecraft Crash Report -------- Minecraft Crash Report ----// You're mean.
Time: 7/27/19 3:18 AMDescription: Exception in server tick loop
net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Pixelmon (pixelmon)Caused by: java.lang.NoSuchMethodError: net.minecraftforge.fml.relauncher.ReflectionHelper.getPrivateValue(Ljava/lang/Class;Ljava/lang/Object;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object; at com.pixelmonmod.pixelmon.entities.pixelmon.EntityPixelmon.<clinit>(EntityPixelmon.java:91) at com.pixelmonmod.pixelmon.CommonProxy.registerInteractions(CommonProxy.java:220) at com.pixelmonmod.pixelmon.Pixelmon.init(Pixelmon.java:163) 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$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) at com.google.common.eventbus.EventBus.post(EventBus.java:217) at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:218) at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:196) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) at com.google.common.eventbus.Subscriber$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:135) at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:744) at net.minecraftforge.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:108) at net.minecraftforge.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:338) at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:219) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486) at java.lang.Thread.run(Unknown Source)

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_201, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 890024568 bytes (848 MB) / 1121976320 bytes (1070 MB) up to 3808428032 bytes (3632 MB) JVM Flags: 0 total; IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: MCP 9.42 Powered by Forge 14.23.5.2768 7 mods loaded, 7 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 | |:----- |:------------- |:------------ |:--------------------------------------------- |:---------------------------------------- | | UCHI | minecraft | 1.12.2 | minecraft.jar | None | | UCHI | mcp | 9.42 | minecraft.jar | None | | UCHI | FML | 8.0.99.99 | forge-1.12.2-14.23.5.2768-universal.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 | | UCHI | forge | 14.23.5.2768 | forge-1.12.2-14.23.5.2768-universal.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 | | UCHI | biomesoplenty | 7.0.1.2427 | BiomesOPlenty-1.12.2-7.0.1.2427-universal.jar | None | | UCHEE | pixelmon | 7.0.7 | Pixelmon-1.12.2-7.0.7-universal (1).jar | None | | UCH | pixelextras | 2.5.0 | PixelExtras-1.12.2-2.5.0-universal.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)

Thanks for the report.

This is not an issue with the mod necessarily, but a change in the newer Forge build that 7.0.7 is built against that broke a few things. To fix it, update your client Forge to 2838 and your server Forge to 2809. Make sure your sidemods are also updated -- Extras 2.5.0 will cause crashes, too.