Hello, I have added GriefPrevention into my Sponge/Forge Server and I am getting this issue in my console.
[20:12:36] [Server thread/WARN] [Sponge]: //
[20:12:36] [Server thread/WARN] [Sponge]: / Could not pass FMLServerAboutToStartEvent /
[20:12:36] [Server thread/WARN] [Sponge]: //
[20:12:36] [Server thread/WARN] [Sponge]: /* Could not pass the event FMLServerAboutToStartEvent to an Event Listener! /
[20:12:36] [Server thread/WARN] [Sponge]: / /
[20:12:36] [Server thread/WARN] [Sponge]: / Since the event can be modified during the event’s listener, /
[20:12:36] [Server thread/WARN] [Sponge]: / there could be adverse side effects of the exception occurring /
[20:12:36] [Server thread/WARN] [Sponge]: / such that duplications or other game breaking issues could exist. /
[20:12:36] [Server thread/WARN] [Sponge]: / /
[20:12:36] [Server thread/WARN] [Sponge]: / Due to the nature of the exception, this is not likely an exception /
[20:12:36] [Server thread/WARN] [Sponge]: / that is covered by SpongeForge or Forge itself, and therefore should /
[20:12:36] [Server thread/WARN] [Sponge]: / be reported to the mod/plugin author first prior to reporting to /
[20:12:36] [Server thread/WARN] [Sponge]: / Sponge or Forge. /
[20:12:36] [Server thread/WARN] [Sponge]: / /
[20:12:36] [Server thread/WARN] [Sponge]: / Owning Mod/Plugin: griefprevention /
[20:12:36] [Server thread/WARN] [Sponge]: / Exception: /
[20:12:36] [Server thread/WARN] [Sponge]: / java.lang.NoClassDefFoundError: /
[20:12:36] [Server thread/WARN] [Sponge]: / io/github/nucleuspowered/nucleus/api /
[20:12:36] [Server thread/WARN] [Sponge]: / exceptions/PluginAlreadyRegisteredEx /
[20:12:36] [Server thread/WARN] [Sponge]: / eption /
[20:12:36] [Server thread/WARN] [Sponge]: / me.ryanhamshire.griefprevention.GriefPreventionPlugin.onServerAboutToStart(GriefPreventionPlugin.java:757) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.common.event.listener.GameAboutToStartServerEventListener_GriefPreventionPlugin_onServerAboutToStart3.handle(Unknown Source) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.common.event.RegisteredListener.handle(RegisteredListener.java:97) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:383) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.mod.event.SpongeModEventManager.extendedPost(SpongeModEventManager.java:458) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:419) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.common.SpongeImpl.postEvent(SpongeImpl.java:255) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.mod.SpongeMod.onStateEvent(SpongeMod.java:363) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) /
[20:12:36] [Server thread/WARN] [Sponge]: / java.lang.reflect.Method.invoke(Method.java:498) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.EventBus.post(EventBus.java:217) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) /
[20:12:36] [Server thread/WARN] [Sponge]: / java.lang.reflect.Method.invoke(Method.java:498) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.EventBus.post(EventBus.java:217) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.LoadController.redirect$zza000$forgeImpl$PostEvent(LoadController.java:568) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.Loader.serverAboutToStart(Loader.java:859) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.FMLCommonHandler.handleServerAboutToStart(FMLCommonHandler.java:292) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:268) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486) /
[20:12:36] [Server thread/WARN] [Sponge]: / java.lang.Thread.run(Thread.java:748) /
[20:12:36] [Server thread/WARN] [Sponge]: / java.lang.ClassNotFoundException: /
[20:12:36] [Server thread/WARN] [Sponge]: / io.github.nucleuspowered.nucleus.api /
[20:12:36] [Server thread/WARN] [Sponge]: / exceptions.PluginAlreadyRegisteredEx /
[20:12:36] [Server thread/WARN] [Sponge]: / eption /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) /
[20:12:36] [Server thread/WARN] [Sponge]: / java.lang.ClassLoader.loadClass(ClassLoader.java:418) /
[20:12:36] [Server thread/WARN] [Sponge]: / java.lang.ClassLoader.loadClass(ClassLoader.java:351) /
[20:12:36] [Server thread/WARN] [Sponge]: / me.ryanhamshire.griefprevention.GriefPreventionPlugin.onServerAboutToStart(GriefPreventionPlugin.java:757) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.common.event.listener.GameAboutToStartServerEventListener_GriefPreventionPlugin_onServerAboutToStart3.handle(Unknown Source) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.common.event.RegisteredListener.handle(RegisteredListener.java:97) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:383) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.mod.event.SpongeModEventManager.extendedPost(SpongeModEventManager.java:458) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:419) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.common.SpongeImpl.postEvent(SpongeImpl.java:255) /
[20:12:36] [Server thread/WARN] [Sponge]: / org.spongepowered.mod.SpongeMod.onStateEvent(SpongeMod.java:363) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) /
[20:12:36] [Server thread/WARN] [Sponge]: / java.lang.reflect.Method.invoke(Method.java:498) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.EventBus.post(EventBus.java:217) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) /
[20:12:36] [Server thread/WARN] [Sponge]: / sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) /
[20:12:36] [Server thread/WARN] [Sponge]: / java.lang.reflect.Method.invoke(Method.java:498) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) /
[20:12:36] [Server thread/WARN] [Sponge]: / com.google.common.eventbus.EventBus.post(EventBus.java:217) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.LoadController.redirect$zza000$forgeImpl$PostEvent(LoadController.java:568) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.Loader.serverAboutToStart(Loader.java:859) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraftforge.fml.common.FMLCommonHandler.handleServerAboutToStart(FMLCommonHandler.java:292) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:268) /
[20:12:36] [Server thread/WARN] [Sponge]: / net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486) /
[20:12:36] [Server thread/WARN] [Sponge]: / java.lang.Thread.run(Thread.java:748) /
[20:12:36] [Server thread/WARN] [Sponge]: / java.lang.NullPointerException: null /
[20:12:36] [Server thread/WARN] [Sponge]: /*****************************************************************************************************************************************************/