[1.7.2] Crash when Spawning entity

[YSPilot]

Crash Report:

java.lang.NullPointerException
at net.minecraft.client.network.NetHandlerPlayClient.func_147281_a(NetHandlerPlayClient.java:730) ~[NetHandlerPlayClient.class:?]
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(S0FPacketSpawnMob.java:97) ~[s0FPacketSpawnMob.class:?]
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(S0FPacketSpawnMob.java:15) ~[s0FPacketSpawnMob.class:?]
at net.minecraft.network.NetworkManager.processReadPackets(NetworkManager.java:198) ~[NetworkManager.class:?]
at net.minecraft.client.multiplayer.PlayerControllerMP.updateController(PlayerControllerMP.java:293) ~[PlayerControllerMP.class:?]
at net.minecraft.client.Minecraft.runTick(Minecraft.java:1585) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:951) ~[Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:869) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:103) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_45]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_45]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
---- Minecraft Crash Report ----
// This doesn't make any sense!

Time: 12/29/13 12:49 PM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
at net.minecraft.client.network.NetHandlerPlayClient.func_147281_a(NetHandlerPlayClient.java:730)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(S0FPacketSpawnMob.java:97)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(S0FPacketSpawnMob.java:15)
at net.minecraft.network.NetworkManager.processReadPackets(NetworkManager.java:198)
at net.minecraft.client.multiplayer.PlayerControllerMP.updateController(PlayerControllerMP.java:293)
at net.minecraft.client.Minecraft.runTick(Minecraft.java:1585)
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:951)
at net.minecraft.client.Minecraft.run(Minecraft.java:869)
at net.minecraft.client.main.Main.main(Main.java:103)
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:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)


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

-- Head --
Stacktrace:
at net.minecraft.client.network.NetHandlerPlayClient.func_147281_a(NetHandlerPlayClient.java:730)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(S0FPacketSpawnMob.java:97)
at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(S0FPacketSpawnMob.java:15)
at net.minecraft.network.NetworkManager.processReadPackets(NetworkManager.java:198)
at net.minecraft.client.multiplayer.PlayerControllerMP.updateController(PlayerControllerMP.java:293)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [EntityClientPlayerMP['Player806'/223, l='MpServer', x=-307.80, y=5.62, z=-945.29]]
Chunk stats: MultiplayerChunkCache: 225, 225
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options: 
Level spawn location: World: (-314,4,-939), Chunk: (at 6,0,5 in -20,-59; contains blocks -320,0,-944 to -305,255,-929), Region: (-1,-2; contains chunks -32,-64 to -1,-33, blocks -512,0,-1024 to -1,255,-513)
Level time: 1328 game time, 1328 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: 94 total; [EntitySlime['Slime'/137, l='MpServer', x=-302.63, y=4.00, z=-901.46], EntitySlime['Slime'/136, l='MpServer', x=-317.55, y=3.82, z=-1013.95], EntityCow['Cow'/143, l='MpServer', x=-293.80, y=4.00, z=-922.16], EntitySlime['Slime'/142, l='MpServer', x=-285.33, y=4.00, z=-1013.52], EntitySlime['Slime'/24527, l='MpServer', x=-274.34, y=4.00, z=-884.97], EntitySlime['Slime'/128, l='MpServer', x=-310.89, y=4.23, z=-934.32], EntitySlime['Slime'/24522, l='MpServer', x=-278.95, y=4.99, z=-874.17], EntitySlime['Slime'/133, l='MpServer', x=-303.84, y=4.00, z=-1015.84], EntitySlime['Slime'/134, l='MpServer', x=-298.78, y=4.00, z=-901.13], EntityPig['Pig'/153, l='MpServer', x=-281.28, y=4.00, z=-866.91], EntityPig['Pig'/154, l='MpServer', x=-289.94, y=4.00, z=-877.13], EntityPig['Pig'/155, l='MpServer', x=-278.50, y=4.00, z=-876.50], EntityPig['Pig'/157, l='MpServer', x=-280.13, y=4.00, z=-866.56], EntityCow['Cow'/144, l='MpServer', x=-274.50, y=4.00, z=-907.50], EntityCow['Cow'/145, l='MpServer', x=-275.50, y=4.00, z=-905.50], EntityCow['Cow'/146, l='MpServer', x=-278.41, y=4.00, z=-908.91], EntityHorse['Horse'/147, l='MpServer', x=-280.41, y=4.00, z=-909.81], EntityPig['Pig'/148, l='MpServer', x=-277.50, y=4.00, z=-910.50], EntityPig['Pig'/149, l='MpServer', x=-282.50, y=4.00, z=-910.25], EntityPig['Pig'/150, l='MpServer', x=-287.50, y=4.00, z=-907.50], EntityPig['Pig'/151, l='MpServer', x=-278.88, y=4.00, z=-896.97], EntityChicken['Chicken'/171, l='MpServer', x=-266.41, y=4.00, z=-928.47], EntityCow['Cow'/170, l='MpServer', x=-260.69, y=4.00, z=-925.38], EntitySlime['Slime'/169, l='MpServer', x=-273.55, y=4.82, z=-935.71], EntityChicken['Chicken'/168, l='MpServer', x=-263.38, y=4.00, z=-932.44], EntitySlime['Slime'/174, l='MpServer', x=-270.76, y=3.00, z=-888.05], EntitySlime['Slime'/172, l='MpServer', x=-274.38, y=4.00, z=-887.66], EntitySlime['Slime'/163, l='MpServer', x=-252.06, y=4.00, z=-1025.96], EntityPig['Pig'/161, l='MpServer', x=-278.59, y=4.00, z=-868.19], EntityPig['Pig'/160, l='MpServer', x=-276.97, y=4.00, z=-868.09], EntityChicken['Chicken'/41, l='MpServer', x=-377.16, y=4.00, z=-971.59], EntityChicken['Chicken'/167, l='MpServer', x=-257.50, y=4.00, z=-933.50], EntityCow['Cow'/166, l='MpServer', x=-260.06, y=4.00, z=-922.19], EntityPig['Pig'/44, l='MpServer', x=-387.41, y=4.00, z=-964.16], EntitySlime['Slime'/165, l='MpServer', x=-249.21, y=4.00, z=-991.76], EntityPig['Pig'/45, l='MpServer', x=-386.50, y=4.00, z=-961.50], EntitySlime['Slime'/164, l='MpServer', x=-264.97, y=5.26, z=-987.67], EntitySlime['Slime'/51, l='MpServer', x=-380.18, y=3.00, z=-950.69], EntitySlime['Slime'/16676, l='MpServer', x=-256.57, y=4.00, z=-987.44], EntitySlime['Slime'/186, l='MpServer', x=-259.04, y=4.76, z=-931.24], EntityPig['Pig'/50, l='MpServer', x=-386.50, y=4.00, z=-959.50], EntitySlime['Slime'/187, l='MpServer', x=-258.82, y=4.49, z=-884.43], EntityPig['Pig'/184, l='MpServer', x=-256.84, y=4.00, z=-924.56], EntityPig['Pig'/185, l='MpServer', x=-256.19, y=4.00, z=-926.53], EntitySlime['Slime'/190, l='MpServer', x=-247.06, y=3.00, z=-998.44], EntitySlime['Slime'/191, l='MpServer', x=-241.34, y=4.00, z=-1006.25], EntityHorse['Horse'/52, l='MpServer', x=-384.50, y=4.00, z=-930.50], EntitySlime['Slime'/178, l='MpServer', x=-255.32, y=4.00, z=-1024.18], EntitySlime['Slime'/77903, l='MpServer', x=-379.33, y=4.39, z=-1007.08], EntitySlime['Slime'/179, l='MpServer', x=-247.46, y=4.26, z=-1007.04], EntityChicken['Chicken'/182, l='MpServer', x=-257.47, y=4.00, z=-926.53], EntityPig['Pig'/183, l='MpServer', x=-252.50, y=4.00, z=-924.16], EntityClientPlayerMP['Player806'/223, l='MpServer', x=-307.80, y=5.62, z=-945.29], EntitySlime['Slime'/180, l='MpServer', x=-244.13, y=4.26, z=-974.29], EntityPig['Pig'/181, l='MpServer', x=-252.50, y=4.00, z=-930.50], EntityCow['Cow'/68, l='MpServer', x=-387.19, y=4.00, z=-887.81], EntitySlime['Slime'/49344, l='MpServer', x=-264.41, y=4.00, z=-1013.04], EntityPig['Pig'/70, l='MpServer', x=-385.19, y=4.00, z=-873.25], EntityPig['Pig'/71, l='MpServer', x=-387.78, y=4.00, z=-868.53], EntityPig['Pig'/65, l='MpServer', x=-384.50, y=4.00, z=-923.78], EntityPig['Pig'/67, l='MpServer', x=-386.50, y=4.00, z=-922.50], EntitySheep['Sheep'/76, l='MpServer', x=-387.38, y=4.00, z=-870.25], EntitySheep['Sheep'/77, l='MpServer', x=-383.75, y=4.00, z=-876.81], EntitySlime['Slime'/196, l='MpServer', x=-249.58, y=3.45, z=-880.56], EntitySlime['Slime'/193, l='MpServer', x=-229.53, y=4.00, z=-930.35], EntityPig['Pig'/73, l='MpServer', x=-378.72, y=4.00, z=-878.25], EntityCow['Cow'/74, l='MpServer', x=-384.31, y=4.00, z=-879.16], EntitySlime['Slime'/195, l='MpServer', x=-228.78, y=3.12, z=-867.78], EntityHorse['Horse'/85, l='MpServer', x=-383.50, y=4.00, z=-938.50], EntityHorse['Horse'/84, l='MpServer', x=-383.13, y=4.00, z=-934.97], EntityCow['Cow'/87, l='MpServer', x=-376.50, y=4.00, z=-929.50], EntityCow['Cow'/86, l='MpServer', x=-380.50, y=4.00, z=-929.50], EntitySlime['Slime'/80, l='MpServer', x=-359.83, y=4.60, z=-1019.67], EntityPig['Pig'/83, l='MpServer', x=-379.06, y=4.00, z=-957.84], EntitySlime['Slime'/73126, l='MpServer', x=-282.06, y=4.35, z=-899.47], EntitySlime['Slime'/82, l='MpServer', x=-382.63, y=4.00, z=-972.65], EntityHorse['Horse'/93, l='MpServer', x=-377.03, y=4.00, z=-920.78], EntityPig['Pig'/92, l='MpServer', x=-379.84, y=4.00, z=-926.88], EntityCow['Cow'/95, l='MpServer', x=-380.50, y=4.00, z=-879.50], EntityCow['Cow'/89, l='MpServer', x=-382.72, y=4.00, z=-933.44], EntityCow['Cow'/88, l='MpServer', x=-377.78, y=4.00, z=-930.28], EntitySlime['Slime'/91, l='MpServer', x=-363.85, y=3.00, z=-941.69], EntitySlime['Slime'/103, l='MpServer', x=-369.00, y=3.00, z=-1009.80], EntitySlime['Slime'/9801, l='MpServer', x=-350.87, y=4.00, z=-961.38], EntitySlime['Slime'/108, l='MpServer', x=-350.42, y=4.00, z=-972.33], EntitySlime['Slime'/109, l='MpServer', x=-360.44, y=3.00, z=-899.94], EntitySlime['Slime'/106, l='MpServer', x=-351.83, y=4.00, z=-959.94], EntitySlime['Slime'/107, l='MpServer', x=-366.41, y=4.01, z=-984.98], EntitySlime['Slime'/104, l='MpServer', x=-352.78, y=4.00, z=-1015.18], EntitySlime['Slime'/105, l='MpServer', x=-359.34, y=3.00, z=-947.13], EntitySlime['Slime'/119, l='MpServer', x=-336.53, y=4.00, z=-901.94], EntitySlime['Slime'/118, l='MpServer', x=-338.19, y=3.00, z=-927.02], EntitySlime['Slime'/117, l='MpServer', x=-337.33, y=3.00, z=-967.50], EntitySlime['Slime'/116, l='MpServer', x=-342.07, y=4.00, z=-997.28]]
Retry entities: 0 total; []
Server brand: fml,forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.multiplayer.WorldClient.addWorldInfoToCrashReport(WorldClient.java:384)
at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:2430)
at net.minecraft.client.Minecraft.run(Minecraft.java:898)
at net.minecraft.client.main.Main.main(Main.java:103)
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:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.7.2
Operating System: Windows 8 (x86) version 6.2
Java Version: 1.7.0_45, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 60916344 bytes (58 MB) / 163246080 bytes (155 MB) up to 259522560 bytes (247 MB)
JVM Flags: 0 total; 
AABB Pool Size: 11463 (641928 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.01-pre FML v7.2.28.976 Minecraft Forge 10.12.0.976 5 mods loaded, 5 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{7.2.28.976} [Forge Mod Loader] (forge-1.7.2-10.12.0.976-mcp.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{10.12.0.976} [Minecraft Forge] (forge-1.7.2-10.12.0.976-mcp.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
examplemod{1.0} [Example Mod] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
OreSpiders{1.0} [OreSpiders] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Launched Version: 1.6
LWJGL: 2.9.0
OpenGL: AMD Radeon HD 7000 series GL version 4.2.12217 Compatibility Profile Context 9.2.0.0, ATI Technologies Inc.
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 1377 (77112 bytes; 0 MB) allocated, 23 (1288 bytes; 0 MB) used
Anisotropic Filtering: Off (1)

 

 

 

Let me know what bits of info you need, And Ill post them. i have been fight with this for almost 16 hours. Im at my wits end. I believe with the 1.6.4 it was like a packet250 error or something like that. Any suggestion would be amazing. Part of me wants to say it has something to do with the @NetworkMod annotation being removed, but im not sure.

[beyonix]

I see several possible reasons for getting that exception in that method:

1. EntityList.createEntityByID failed. You can establish whether this is the cause by checking for a log entry "Skipping Entity with id". If that entry can be found just before the exception trace, that is probably the problem and you may be able to figure out why from there.

2. entityLivingBase.getParts() returns a list containing at least one null entry. Should only be relevant if you were trying to spawn a dragon (and even then this shouldn't happen) or an entity for which you implemented getParts yourself.

3. NetHandlerPlayClient doesn't have a WorldClient set (field_147300_g). It is normally set when joining a game/respawning (NetHandlerPlayClient handling S01PacketJoinGame or S07PacketRespawn), but it can be reset to null using func_147296_c, which is done by Minecraft.loadWorld. Perhaps you perform entity spawning in a part of the process where these kind of things are not expected to be done? Probably the most useful to investigate.