client crashes when generating or loading world

[colemy]

client crashes when generating or loading world. worldedit 7.0.1 beta 1 forge tested alone on forge 1.14.4-28.0.24, crash log below.

---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!

Time: 7/30/19 7:26 PM
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-0.10.6-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-3.1.0.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: 955636576 bytes (911 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
CPUs: 8
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
ModLauncher: 3.1.0+58+1395384
ModLauncher launch target: fmlclient
ModLauncher naming: srg
ModLauncher services:
/eventbus-0.10.6-service.jar eventbus PLUGINSERVICE
/forge-1.14.4-28.0.24.jar object_holder_definalize PLUGINSERVICE
/forge-1.14.4-28.0.24.jar runtime_enum_extender PLUGINSERVICE
/accesstransformers-0.16.0-shadowed.jar accesstransformer PLUGINSERVICE
/forge-1.14.4-28.0.24.jar capability_inject_definalize PLUGINSERVICE
/forge-1.14.4-28.0.24.jar runtimedistcleaner PLUGINSERVICE
/forge-1.14.4-28.0.24.jar fml TRANSFORMATIONSERVICE
FML: 28.0
Forge: net.minecraftforge:28.0.24
FML Language Providers:
javafml@28.0
Mod List:
worldedit-forge-mc1.14.2-7.0.1-beta-01.jar WorldEdit {worldedit@7.0.1-beta-01;c97071c DONE}
forge-1.14.4-28.0.24-universal.jar Forge {forge@28.0.24 DONE}
Player Count: 0 / 8; []
Data Packs: vanilla, mod:worldedit, mod:forge
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'forge'