[BUG] [0.9.0] Mowzie's Mobs Naga Crash

Describe the bug. Occasional server crashes caused by Mowzie's Mobs's attempting to spawn Naga entities in the overworld.

What is the expected behavior? Nagas would be spawned in the world.

What is the current behavior? Server crashes occur when Mowzie's Mobs attempts to spawn a Naga.

How can the bug be reproduced? Attempt to spawn a Naga.

Provide log files.

java.lang.reflect.InvocationTargetException: null
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_151]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_151]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_151]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_151]
    at net.minecraftforge.fml.common.registry.EntityEntryBuilder$ConstructorFactory.apply(EntityEntryBuilder.java:305) [EntityEntryBuilder$ConstructorFactory.class:?]
    at net.minecraftforge.fml.common.registry.EntityEntryBuilder$ConstructorFactory.apply(EntityEntryBuilder.java:291) [EntityEntryBuilder$ConstructorFactory.class:?]
    at net.minecraftforge.fml.common.registry.EntityEntry.newInstance(EntityEntry.java:68) [EntityEntry.class:?]
    at net.minecraft.world.biome.Biome$SpawnListEntry.newInstance(Biome.java:655) [anh$c.class:?]
    at net.minecraft.world.WorldEntitySpawner.findChunksForSpawning(WorldEntitySpawner.java:141) [anb.class:?]
    at net.minecraft.world.WorldServer.tick(WorldServer.java:203) [oo.class:?]
    at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:756) [MinecraftServer.class:?]
    at net.minecraft.server.dedicated.DedicatedServer.updateTimeLightAndEntities(DedicatedServer.java:397) [nz.class:?]
    at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:668) [MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_151]
Caused by: java.lang.NoSuchFieldError: dc
    at com.bobmowzie.mowziesmobs.server.entity.naga.EntityNaga.<init>(EntityNaga.java:223) ~[EntityNaga.class:?]
    ... 15 more
[01:40:56] [Server thread/ERROR] [net.minecraft.server.MinecraftServer]: Encountered an unexpected exception
net.minecraft.util.ReportedException: Exception ticking world
    at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:762) ~[MinecraftServer.class:?]
    at net.minecraft.server.dedicated.DedicatedServer.updateTimeLightAndEntities(DedicatedServer.java:397) ~[nz.class:?]
    at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:668) ~[MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_151]
Caused by: java.lang.NullPointerException
    at net.minecraft.world.WorldEntitySpawner.findChunksForSpawning(WorldEntitySpawner.java:149) ~[anb.class:?]
    at net.minecraft.world.WorldServer.tick(WorldServer.java:203) ~[oo.class:?]
    at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:756) ~[MinecraftServer.class:?]
    ... 4 more

Solutions? Mowzie's Mobs has apparently resolved this issue after version 1.5.4. Disable Naga spawns and/or update the mod.

lonelymaw / Crumbs

[BUG] [0.9.0] Mowzie's Mobs Naga Crash #3