Minecraft Forums

Just last night, I managed to get almost all of the mods I wanted in my Minecraft install working by changing some ID conflicts. There's 3 I can't get working (Animated player, Galacticraft, Power Suit). Although, the reason why they won't work is that they don't like each other. So, I just have to play with them one at a time. However, when I tried running the game this morning, I got this (this is the latest version after everything I tried didn't work):

---- Minecraft Crash Report ----
// Why is it breaking 

Time: 10/15/13 12:12 PM
Description: Unexpected error

java.lang.NullPointerException
at net.minecraft.client.multiplayer.NetClientHandler.func_72519_a(NetClientHandler.java:952)
at net.minecraft.network.packet.Packet24MobSpawn.func_73279_a(SourceFile:87)
at net.minecraft.network.MemoryConnection.func_74428_b(MemoryConnection.java:89)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1965)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:908)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:836)
at net.minecraft.client.main.Main.main(SourceFile:101)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at net.minecraft.client.multiplayer.NetClientHandler.func_72519_a(NetClientHandler.java:952)
at net.minecraft.network.packet.Packet24MobSpawn.func_73279_a(SourceFile:87)
at net.minecraft.network.MemoryConnection.func_74428_b(MemoryConnection.java:89)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP['Joshua725'/425, l='MpServer', x=-43.19, y=5.62, z=-102.30]]
Chunk stats: MultiplayerChunkCache: 35
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (-57,4,-136), Chunk: (at 7,0,8 in -4,-9; contains blocks -64,0,-144 to -49,255,-129), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Level time: 273768 game time, 6242 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 16 total; [EntityChicken['Chicken'/34, l='MpServer', x=-65.63, y=4.00, z=-126.63], EntityTFNagaSegment['unknown'/715, l='MpServer', x=0.00, y=0.00, z=0.00], EntityItem['item.item.egg'/33, l='MpServer', x=-79.75, y=4.13, z=-123.72], EntityTFNagaSegment['unknown'/714, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/717, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/716, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/719, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/718, l='MpServer', x=0.00, y=0.00, z=0.00], MoCEntityButterfly['ButterFly'/41, l='MpServer', x=15.50, y=4.00, z=-119.50], EntityClientPlayerMP['Joshua725'/425, l='MpServer', x=-43.19, y=5.62, z=-102.30], EntityTFNagaSegment['unknown'/720, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/721, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/722, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/723, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/724, l='MpServer', x=0.00, y=0.00, z=0.00], EntityTFNagaSegment['unknown'/725, l='MpServer', x=0.00, y=0.00, z=0.00]]
Retry entities: 0 total; []
Server brand: fml,forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:440)
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2310)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:861)
at net.minecraft.client.main.Main.main(SourceFile:101)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)

-- System Details --
Details:
Minecraft Version: 1.6.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_40, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 313503352 bytes (298 MB) / 770179072 bytes (734 MB) up to 1908932608 bytes (1820 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G
AABB Pool Size: 4625 (259000 bytes; 0 MB) allocated, 4625 (259000 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v8.04 FML v6.2.62.871 Minecraft Forge 9.10.1.871 68 mods loaded, 68 mods active
mcp{8.04} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{6.2.62.871} [Forge Mod Loader] (minecraftforge-9.10.1.871.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{9.10.1.871} [Minecraft Forge] (minecraftforge-9.10.1.871.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AppliedEnergistics-Core{rv13.b} [AppliedEnergistics Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CodeChickenCore{0.9.0.5} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NotEnoughItems{1.6.1.4} [Not Enough Items] (NotEnoughItems 1.6.1.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_bspkrsCore{v3.05(1.6.2)} [bspkrsCore] (mod_bspkrsCorev3.05[1.6.2].zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AppliedEnergistics{rv13.b} [Applied Energistics] (Applied Energistics-rv13-b-mc162.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ArchimedesShipsMod{1.6.2 v1.3.6} [Archimedes' Ships] (ArchimedesShips.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_ArmorStatusHUD{v1.13(1.6.2)} [ArmorStatusHUD] (ArmorStatusHUDv1.13[1.6.2].zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Backpack{1.12.15} [Backpack] (backpack-1.12.15-1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
weaponmod{1.6.2 v1.13.6} [Balkon's WeaponMod] (Balkon's WeaponMod v1.13.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BetterFurnaces{3.3} [Better Furnaces] (Better Furnaces v3.3 (1.6.2).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Natura{2.1.8} [Natura] (Natura_1.6.2_2.1.9.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BiomesOPlenty{1.1.2} [Biomes O' Plenty] (BiomesOPlenty-universal-1.6.4-1.1.2.51.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Core{4.0.2} [BuildCraft] (BuildCraft-Mod-1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Builders{4.0.2} [BC Builders] (BuildCraft-Mod-1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Energy{4.0.2} [BC Energy] (BuildCraft-Mod-1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Factory{4.0.2} [BC Factory] (BuildCraft-Mod-1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Transport{4.0.2} [BC Transport] (BuildCraft-Mod-1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Silicon{4.0.2} [BC Silicon] (BuildCraft-Mod-1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ChickenChunks{1.3.3.2} [ChickenChunks] (ChickenChunks 1.3.3.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ComputerCraft{1.56} [ComputerCraft] (ComputerCraft1.56.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CCTurtle{1.56} [ComputerCraft Turtles] (ComputerCraft1.56.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CustomSpawner{2.3.1} [DrZhark's CustomSpawner] (CustomMobSpawner 2.3.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
customnpcs{0.8} [CustomNpcs] (CustomNPCs_1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DamageIndicatorsMod{2.9.0.9} [Damage Indicators] (DamageIndicators v2.9.0.9 (1.6.X).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
emashercore{1.2.1.4} [Emasher Resource] (EmasherResource-1.2.1.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
emasherdefense{1.2.1.0} [Defense] (Defense-1.2.1.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MoCreatures{6.0.1} [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v6.0.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights{1.2.5} [Dynamic Lights] (DynamicLights_1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_onFire{1.0.2} [Dynamic Lights on burning] (DynamicLights_1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_creepers{1.0.2} [Dynamic Lights on Creepers] (DynamicLights_1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_dropItems{1.0.4} [Dynamic Lights on ItemEntities] (DynamicLights_1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_mobEquipment{1.0.1} [Dynamic Lights on Mob Equipment] (DynamicLights_1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_flameArrows{1.0.0} [Dynamic Lights on Flame enchanted Arrows] (DynamicLights_1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_otherPlayers{1.0.4} [Dynamic Lights Other Player Light] (DynamicLights_1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_thePlayer{1.0.8} [Dynamic Lights Player Light] (DynamicLights_1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
eng_toolbox{1.1.5.0} [Engineer's Toolbox] (EngineersToolbox-1.1.5.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
EnhancedCore{1.1.3} [EnhancedCore] (EnhancedCore_1.1.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ExtrabiomesXL{3.14.1} [ExtrabiomesXL] (ExtrabiomesXL-universal-1.6.2-3.14.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FinderCompass{1.6.2B} [Finder Compass] (FinderCompass_1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FlansMod{3.0.4} [Flans Mod] (FlansMod-3.0.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
IC2{2.0.265-experimental} [IndustrialCraft 2] (industrialcraft-2_2.0.265-experimental.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forestry{2.3.0.5} [Forestry for Minecraft] (forestry-A-2.3.0.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
gascraft{2.0.2.0} [GasCraft] (GasCraft-2.0.2.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
GregsLighting{1.9.0} [Greg's Lighting] (GregsLighting-1.9.0-mc1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TwilightForest{1.19.3} [The Twilight Forest] (twilightforest-1.19.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
gregtech_addon{MC162} [GregTech-Addon] (gregtechmod404l.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
KeithyUtils{1.2} [Keithy Utils] (KeithyUtils_1.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
lom{102.0.1} [LotsOMobs] (LotsOMobs_102.0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
dna{2.1} [dna] (LotsOMobs_102.0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Metallurgy3Core{3.2.3} [Metallurgy 3 Core] (Metallurgy_3.2.3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Metallurgy3Base{3.2.3} [Metallurgy 3 Base] (Metallurgy_3.2.3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Metallurgy3Machines{3.2.3} [Metallurgy 3 Machines] (Metallurgy_3.2.3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Metallurgy3Vanilla{3.2.3} [Metallurgy 3 Vanilla] (Metallurgy_3.2.3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
GraviSuite{1.9.6} [Gravitation Suite] (mod_zGraviSuite_1_9_6_IC2_EXP.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MonsterSpawnHighlighter{1.4.1.21} [Monster Spawn Highlighter] (MonsterSpawnHighlighter-v1.4.1.21 [1.6.2].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MoreExplosives{Release 3.7 for Minecraft 1.6.2} [More Explosives] (MoreExplosivesMod v3.7 MC1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Niftycraft{3.0} [Niftycraft] (Niftycraft V3.0 (MC 1.6.2).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
numina{0.0.1-17} [Numina] (Numina-1.6.2-0.0.1-17.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
PetBat{1.2.3} [Pet Bat] (PetBat_1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_ReiMinimap{v3.4_01 [1.6.2]} [mod_ReiMinimap] (ReiMinimap_v3.4_01.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
SGCraft{0.6.0} [SG Craft] (SGCraft-0.6.0-mc1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Star Wars Mod{V.3_01} [Star Wars Mod] (Star-Wars-Mod-1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_StatusEffectHUD{v1.16(1.6.2)} [StatusEffectHUD] (StatusEffectHUDv1.16[1.6.2].zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TreeCapitator{Forge 1.6.2.r05} [Treecapitator] (TreeCapitator.Forge.r05.Universal[1.6.2].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AS_UpdateCheck{1.1.0} [AtomicStryker Update Check Mod] (UpdateCheckerMod_1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Launched Version: 1.6.2 Forge
LWJGL: 2.9.0
OpenGL: GeForce 7950 GX2/PCIe/SSE2 GL version 2.1.2, NVIDIA Corporation
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Pack: Default
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

I get it when I try to start one of my world saves. It is the superflat world generation. So, there are no special things that should be going on in the world.

Just a quick note, I have almost 70 mods that I got working last night. Why not all of them will show up is beyond me.

I think I figured out what went wrong. In downloading some of my mods, one had an additional file called slick-util.jar. From what i can figure out, it is mean to utilize TTFs somehow. Also, Glenn's Gases has some problems. I tried getting it to load with just NEI and Minecraft wouldn't even load. It wasn't until I ran it by itself that Minecraft would work. One other mod that wouldn't work is the Inventory Tweaks mod. But, that gave off a different error message. I will say that it crashed when I had NEI installed and I tried going into my inventory.