Forge 28.0.14 server tick loop error

[DorianMuse]

I've updated to the latest version of Forge but every time I try to open a world the game crashes immediately with the error:

The game crashed whilst exception in server tick loop
Error: java.lang.NoClassDefFoundError: net/minecraft/world/ServerWorld

 

This is the crash report:

---- Minecraft Crash Report ----
// Why is it breaking

Time: 25/07/19 12:54
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: net/minecraft/world/ServerWorld
    at com.sk89q.worldedit.forge.ForgeWorldEdit.setupPlatform(ForgeWorldEdit.java:133) ~[?:?] {}
    at com.sk89q.worldedit.forge.ForgeWorldEdit.serverStarted(ForgeWorldEdit.java:192) ~[?:?] {}
    at net.minecraftforge.eventbus.ASMEventHandler_3_ForgeWorldEdit_serverStarted_FMLServerStartedEvent.invoke(.dynamic) ~[?:?] {}
    at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:80) ~[eventbus-0.10.3-milestone.0.1+1a5fa31-service.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258) ~[eventbus-0.10.3-milestone.0.1+1a5fa31-service.jar:?] {}
    at net.minecraftforge.fml.server.ServerLifecycleHooks.handleServerStarted(ServerLifecycleHooks.java:81) ~[?:?] {}
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:598) [?:?] {pl:accesstransformer:B}
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_51] {}
Caused by: java.lang.ClassNotFoundException: net.minecraft.world.ServerWorld
    at java.lang.ClassLoader.findClass(ClassLoader.java:530) ~[?:1.8.0_51] {}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51] {}
    at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:102) ~[modlauncher-3.0.2.jar:?] {}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51] {}
    ... 8 more

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

-- System Details --
Details:
    Minecraft Version: 1.14.4
    Minecraft Version ID: 1.14.4
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_51, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 941024568 bytes (897 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
    CPUs: 12
    JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    FML: New FML!
    Loaded coremods (and transformers): Nothing
    Player Count: 0 / 8; []
    Data Packs: mod:worldedit, mod:forge, vanilla
    Type: Integrated Server (map_client.txt)
    Is Modded: Definitely; Client brand changed to 'forge'

 

Thanks in advance

[DorianMuse]

  On 7/25/2019 at 11:05 AM, DorianMuse said:

I've updated to the latest version of Forge but every time I try to open a world the game crashes immediately with the error:

The game crashed whilst exception in server tick loop
Error: java.lang.NoClassDefFoundError: net/minecraft/world/ServerWorld

 

This is the crash report:

---- Minecraft Crash Report ----
// Why is it breaking

Time: 25/07/19 12:54
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: net/minecraft/world/ServerWorld
    at com.sk89q.worldedit.forge.ForgeWorldEdit.setupPlatform(ForgeWorldEdit.java:133) ~[?:?] {}
    at com.sk89q.worldedit.forge.ForgeWorldEdit.serverStarted(ForgeWorldEdit.java:192) ~[?:?] {}
    at net.minecraftforge.eventbus.ASMEventHandler_3_ForgeWorldEdit_serverStarted_FMLServerStartedEvent.invoke(.dynamic) ~[?:?] {}
    at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:80) ~[eventbus-0.10.3-milestone.0.1+1a5fa31-service.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258) ~[eventbus-0.10.3-milestone.0.1+1a5fa31-service.jar:?] {}
    at net.minecraftforge.fml.server.ServerLifecycleHooks.handleServerStarted(ServerLifecycleHooks.java:81) ~[?:?] {}
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:598) [?:?] {pl:accesstransformer:B}
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_51] {}
Caused by: java.lang.ClassNotFoundException: net.minecraft.world.ServerWorld
    at java.lang.ClassLoader.findClass(ClassLoader.java:530) ~[?:1.8.0_51] {}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51] {}
    at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:102) ~[modlauncher-3.0.2.jar:?] {}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51] {}
    ... 8 more

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

-- System Details --
Details:
    Minecraft Version: 1.14.4
    Minecraft Version ID: 1.14.4
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_51, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 941024568 bytes (897 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
    CPUs: 12
    JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    FML: New FML!
    Loaded coremods (and transformers): Nothing
    Player Count: 0 / 8; []
    Data Packs: mod:worldedit, mod:forge, vanilla
    Type: Integrated Server (map_client.txt)
    Is Modded: Definitely; Client brand changed to 'forge'

 

Thanks in advance

Expand  

Updated to Forge 28.0.18 and I still have the same problem

 

The game crashed whilst exception in server tick loop
Error: java.lang.NoClassDefFoundError: net/minecraft/world/ServerWorld

 

Crash report:

---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 26/07/19 19:45
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: net/minecraft/world/ServerWorld
    at com.sk89q.worldedit.forge.ForgeWorldEdit.setupPlatform(ForgeWorldEdit.java:133) ~[?:?] {}
    at com.sk89q.worldedit.forge.ForgeWorldEdit.serverStarted(ForgeWorldEdit.java:192) ~[?:?] {}
    at net.minecraftforge.eventbus.ASMEventHandler_1_ForgeWorldEdit_serverStarted_FMLServerStartedEvent.invoke(.dynamic) ~[?:?] {}
    at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:80) ~[eventbus-0.10.6-service.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:258) ~[eventbus-0.10.6-service.jar:?] {}
    at net.minecraftforge.fml.server.ServerLifecycleHooks.handleServerStarted(ServerLifecycleHooks.java:81) ~[?:?] {}
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:598) [?:?] {pl:accesstransformer:B}
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_51] {}
Caused by: java.lang.ClassNotFoundException: net.minecraft.world.ServerWorld
    at java.lang.ClassLoader.findClass(ClassLoader.java:530) ~[?:1.8.0_51] {}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51] {}
    at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:102) ~[modlauncher-3.0.2.jar:?] {}
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51] {}
    ... 8 more

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

-- System Details --
Details:
    Minecraft Version: 1.14.4
    Minecraft Version ID: 1.14.4
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_51, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 1227007040 bytes (1170 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
    CPUs: 12
    JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    FML: New FML!
    Loaded coremods (and transformers): Nothing
    Player Count: 0 / 8; []
    Data Packs: mod:worldedit, mod:forge, vanilla
    Type: Integrated Server (map_client.txt)
    Is Modded: Definitely; Client brand changed to 'forge'

[DaemonUmbra]

Can you provide a screenshot of your mods folder?

[DorianMuse]

I only have WorldEdit installed

[JoJoModding]

That mod is for 1.14.3 - at least the class it tries to load changed during the 1.14.4 update.

Where did you get it from? And why does it say 'fabric'?

[DaemonUmbra]

Fabric is a different modloader...

[DorianMuse]

I got it from CurseForge. As for 'fabric'. I have no idea

[JoJoModding]

There is no forge 1.14.4 compatible version listed there. So the mod is not yet compatible with 1.14.4

[DorianMuse]

Alright, thanks  Guess I'll just have to wait, then

[cats]

I have the same problem however the mod I want to use is compatible with forge. The mod is for 1.7.10 and I'm using 1.7.10. Is it because the version is too old?

Edited November 3, 2020 by cats