java.lang.NullPointerException
        at GenLayerTropicsExpand.a(GenLayerTropicsExpand.java:30)
        at ux.a(SourceFile:14)
        at GenLayerTropicsExpand.a(GenLayerTropicsExpand.java:16)
        at ux.a(SourceFile:14)
        at GenLayerTropicsExpand.a(GenLayerTropicsExpand.java:16)
        at GenLayerTropicsAddBiomes.a(GenLayerTropicsAddBiomes.java:14)
        at GenLayerTropicsAddRainforestBiomes.a(GenLayerTropicsAddRainforestBiomes.java:14)
        at ux.a(SourceFile:14)
        at ux.a(SourceFile:14)
        at ux.a(SourceFile:14)
        at ux.a(SourceFile:14)
        at agl.a(SourceFile:17)
        at hz.a(SourceFile:14)
        at hz.a(SourceFile:14)
        at WorldChunkManagerTropics.b(WorldChunkManagerTropics.java:61)
        at agm.<init>(SourceFile:29)
        at op.a(SourceFile:59)
        at op.e(SourceFile:99)
        at WorldChunkManagerTropics.a(WorldChunkManagerTropics.java:154)
        at WorldChunkManagerTropics.b(WorldChunkManagerTropics.java:142)
        at ChunkProviderTropics.b(ChunkProviderTropics.java:287)
        at jx.c(jx.java:57)
        at jx.b(jx.java:76)
        at vq.c(World.java:474)
        at vq.a(World.java:405)
        at mod_EntMover.tryParticles(mod_EntMover.java:1794)
        at mod_EntMover.run(mod_EntMover.java:305)
        at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException
        at GenLayerTropicsExpand.a(GenLayerTropicsExpand.java:34)
        at ux.a(SourceFile:14)
        at GenLayerTropicsExpand.a(GenLayerTropicsExpand.java:16)
        at GenLayerTropicsAddBiomes.a(GenLayerTropicsAddBiomes.java:14)
        at GenLayerTropicsAddRainforestBiomes.a(GenLayerTropicsAddRainforestBiomes.java:14)
        at ux.a(SourceFile:14)
        at ux.a(SourceFile:14)
        at adu.a(SourceFile:12)
        at hz.a(SourceFile:14)
        at cp.a(SourceFile:18)
        at hz.a(SourceFile:14)
        at cp.a(SourceFile:18)
        at hz.a(SourceFile:14)
        at hz.a(SourceFile:14)
        at WorldChunkManagerTropics.a(WorldChunkManagerTropics.java:98)
        at agm.<init>(SourceFile:28)
        at op.a(SourceFile:59)
        at op.b(SourceFile:68)
        at WorldChunkManagerTropics.a(WorldChunkManagerTropics.java:46)
        at WorldGenVolcano.getVolcanoNear(WorldGenVolcano.java:131)
        at WorldGenVolcano.generate(WorldGenVolcano.java:19)
        at ChunkProviderTropics.b(ChunkProviderTropics.java:289)
        at jx.c(jx.java:57)
        at jx.b(jx.java:76)
        at vq.c(World.java:474)
        at vq.a(World.java:405)
        at net.minecraft.client.Minecraft.e(SourceFile:1900)
        at net.minecraft.client.Minecraft.a(SourceFile:1808)
        at DimensionBase.changeWorld(DimensionBase.java:145)
        at DimensionBase.usePortal(DimensionBase.java:84)
        at ItemTropicsPortalStarter.a(ItemTropicsPortalStarter.java:28)
        at yq.a(SourceFile:98)
        at js.a(PlayerController.java:54)
        at net.minecraft.client.Minecraft.c(SourceFile:1239)
        at net.minecraft.client.Minecraft.k(SourceFile:1545)
        at net.minecraft.client.Minecraft.x(SourceFile:709)
        at net.minecraft.client.Minecraft.run(SourceFile:662)
        at java.lang.Thread.run(Unknown Source)
Stopping!