Crash on server startup

[marvin-bitterlich]

Using v14:

[09:16:46] [Server thread/ERROR] [FML/]: Caught exception from chunkgen
java.lang.AbstractMethodError
    at net.minecraft.command.CommandHandler.func_71560_a(CommandHandler.java:134) ~[k.class:?]
    at net.minecraftforge.fml.common.event.FMLServerStartingEvent.registerServerCommand(FMLServerStartingEvent.java:59) ~[FMLServerStartingEvent.class:?]
    at com.gecgooden.chunkgen.ChunkGen.serverLoad(ChunkGen.java:39) ~[ChunkGen.class:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
    at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:597) ~[minecraft_server.jar:?]
    at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source) ~[?:?]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
    at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[minecraft_server.1.10.2.jar:?]
    at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[minecraft_server.1.10.2.jar:?]
    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[minecraft_server.1.10.2.jar:?]
    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[minecraft_server.1.10.2.jar:?]
    at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[minecraft_server.1.10.2.jar:?]
    at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:239) ~[minecraft_server.jar:?]
    at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:217) ~[minecraft_server.jar:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
    at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74) ~[minecraft_server.1.10.2.jar:?]
    at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47) ~[minecraft_server.1.10.2.jar:?]
    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322) ~[minecraft_server.1.10.2.jar:?]
    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304) ~[minecraft_server.1.10.2.jar:?]
    at com.google.common.eventbus.EventBus.post(EventBus.java:275) ~[minecraft_server.1.10.2.jar:?]
    at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:142) [LoadController.class:?]
    at net.minecraftforge.fml.common.Loader.serverStarting(Loader.java:840) [Loader.class:?]
    at net.minecraftforge.fml.common.FMLCommonHandler.handleServerStarting(FMLCommonHandler.java:292) [FMLCommonHandler.class:?]
    at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:293) [ld.class:?]
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431) [MinecraftServer.class:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_101]

[gecgooden]

Duplicate of #26. Closing