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Minecraft Crashes whenever i boot up a save file. "Shutting Down Internal Server"


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---- Minecraft Crash Report ----
// There are four lights!

Time: 7/19/19 3:15 PM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
    at net.minecraft.client.network.NetHandlerPlayClient.func_147281_a(NetHandlerPlayClient.java:745)
    at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:97)
    at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:15)
    at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
    at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:2061)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:973)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)
    at net.minecraft.client.main.Main.main(SourceFile:148)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
    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 --
    at net.minecraft.client.network.NetHandlerPlayClient.func_147281_a(NetHandlerPlayClient.java:745)
    at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:97)
    at net.minecraft.network.play.server.S0FPacketSpawnMob.func_148833_a(SourceFile:15)
    at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
    at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:2061)

-- Affected level --
    Level name: MpServer
    All players: 1 total; [EntityClientPlayerMP['Crazyman63'/562, l='MpServer', x=-1051.50, y=68.62, z=938.50]]
    Chunk stats: MultiplayerChunkCache: 30, 30
    Level seed: 0
    Level generator: ID 04 - BIOMESOP, ver 0. Features enabled: false
    Level generator options: 
    Level spawn location: World: (-1057,64,931), Chunk: (at 15,4,3 in -67,58; contains blocks -1072,0,928 to -1057,255,943), Region: (-3,1; contains chunks -96,32 to -65,63, blocks -1536,0,512 to -1025,255,1023)
    Level time: 254 game time, 254 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: survival (ID 0). Hardcore: false. Cheats: false
    Forced entities: 51 total; [EntityHorse['Horse'/408, l='MpServer', x=-1037.56, y=67.00, z=912.00], EntityHorse['Horse'/409, l='MpServer', x=-1038.50, y=67.00, z=915.50], EntityHorse['Horse'/410, l='MpServer', x=-1036.38, y=67.00, z=915.28], EntityHorse['Horse'/411, l='MpServer', x=-1036.16, y=67.00, z=917.19], EntityHorse['Horse'/412, l='MpServer', x=-1037.97, y=67.00, z=917.19], Girlfriend['Girlfriend'/292, l='MpServer', x=-1086.50, y=63.00, z=910.50], Girlfriend['Girlfriend'/293, l='MpServer', x=-1085.50, y=63.00, z=910.50], Girlfriend['Girlfriend'/294, l='MpServer', x=-1086.59, y=64.00, z=906.53], Girlfriend['Girlfriend'/295, l='MpServer', x=-1085.16, y=64.00, z=906.06], Girlfriend['Girlfriend'/296, l='MpServer', x=-1085.88, y=64.00, z=905.22], Girlfriend['Girlfriend'/297, l='MpServer', x=-1084.28, y=64.00, z=909.78], Girlfriend['Girlfriend'/299, l='MpServer', x=-1081.53, y=64.00, z=911.88], Girlfriend['Girlfriend'/300, l='MpServer', x=-1082.59, y=63.00, z=912.81], Girlfriend['Girlfriend'/301, l='MpServer', x=-1083.31, y=63.00, z=912.25], Girlfriend['Girlfriend'/302, l='MpServer', x=-1083.56, y=63.00, z=913.56], Girlfriend['Girlfriend'/303, l='MpServer', x=-1081.34, y=62.66, z=914.25], Cockateil['Bird'/305, l='MpServer', x=-1083.19, y=63.09, z=921.28], EntitySquid['Squid'/306, l='MpServer', x=-1081.75, y=48.28, z=968.75], EntitySquid['Squid'/307, l='MpServer', x=-1077.50, y=50.34, z=972.78], EntitySquid['Squid'/308, l='MpServer', x=-1085.75, y=50.44, z=964.09], EntitySquid['Squid'/309, l='MpServer', x=-1083.41, y=51.03, z=969.84], EntitySquid['Squid'/310, l='MpServer', x=-1083.50, y=57.63, z=974.50], EntitySquid['Squid'/311, l='MpServer', x=-1081.31, y=55.84, z=973.47], EntityWitch['Witch'/441, l='MpServer', x=-1003.50, y=43.00, z=915.50], EntityCreeper['Creeper'/570, l='MpServer', x=-1013.50, y=60.00, z=927.50], EntityWitch['Witch'/442, l='MpServer', x=-1002.50, y=43.00, z=914.50], EntityCreeper['Creeper'/571, l='MpServer', x=-1012.50, y=60.00, z=928.50], EntityWitch['Witch'/443, l='MpServer', x=-999.50, y=43.00, z=916.50], EntityClientPlayerMP['Crazyman63'/562, l='MpServer', x=-1051.50, y=68.62, z=938.50], RedCow['Apple Cow'/345, l='MpServer', x=-1058.81, y=64.00, z=938.50], RedCow['Apple Cow'/346, l='MpServer', x=-1058.03, y=64.00, z=935.03], RedCow['Apple Cow'/347, l='MpServer', x=-1056.38, y=64.00, z=935.63], RedCow['Apple Cow'/348, l='MpServer', x=-1057.66, y=64.00, z=936.72], RedCow['Apple Cow'/349, l='MpServer', x=-1057.47, y=64.00, z=939.03], Cockateil['Bird'/350, l='MpServer', x=-1060.84, y=64.97, z=933.81], RockBase['Rock'/351, l='MpServer', x=-1067.50, y=63.00, z=949.50], RockBase['Rock'/352, l='MpServer', x=-1067.50, y=63.00, z=958.50], RockBase['Rock'/353, l='MpServer', x=-1069.50, y=63.00, z=956.50], RockBase['Rock'/354, l='MpServer', x=-1068.50, y=63.00, z=949.50], RockBase['Rock'/355, l='MpServer', x=-1060.50, y=64.00, z=955.50], RockBase['Rock'/356, l='MpServer', x=-1059.50, y=64.00, z=950.50], RockBase['Rock'/357, l='MpServer', x=-1063.50, y=64.00, z=948.50], RockBase['Rock'/358, l='MpServer', x=-1059.50, y=64.00, z=944.50], RockBase['Rock'/359, l='MpServer', x=-1062.50, y=64.00, z=948.50], EntityItem['item.tile.rail'/360, l='MpServer', x=-1057.13, y=34.13, z=970.81], EntityItem['item.tile.rail'/361, l='MpServer', x=-1058.19, y=34.13, z=969.72], EntitySquid['Squid'/243, l='MpServer', x=-1087.72, y=50.19, z=964.25], Cockateil['Bird'/379, l='MpServer', x=-1052.06, y=73.13, z=928.47], RedCow['Apple Cow'/380, l='MpServer', x=-1054.50, y=65.00, z=938.50], RedCow['Apple Cow'/381, l='MpServer', x=-1055.47, y=64.00, z=936.81], Cockateil['Bird'/382, l='MpServer', x=-1060.00, y=74.22, z=954.31]]
    Retry entities: 0 total; []
    Server brand: fml,forge
    Server type: Integrated singleplayer server
    at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2444)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:927)
    at net.minecraft.client.main.Main.main(SourceFile:148)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
    Minecraft Version: 1.7.10
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_51, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 355264560 bytes (338 MB) / 671088640 bytes (640 MB) up to 2147483648 bytes (2048 MB)
    JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
    IntCache: cache: 3, tcache: 0, allocated: 12, tallocated: 97
    FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 54 mods loaded, 54 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
    UCHIJAAAA    mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) 
    UCHIJAAAA    FML{} [Forge Mod Loader] (forge-1.7.10- 
    UCHIJAAAA    Forge{} [Minecraft Forge] (forge-1.7.10- 
    UCHIJAAAA    appliedenergistics2-core{rv3-beta-6} [Applied Energistics 2 Core] (minecraft.jar) 
    UCHIJAAAA    CodeChickenCore{} [CodeChicken Core] (minecraft.jar) 
    UCHIJAAAA    NotEnoughItems{} [Not Enough Items] (NotEnoughItems-1.7.10- 
    UCHIJAAAA    <CoFH ASM>{000} [CoFH ASM] (minecraft.jar) 
    UCHIJAAAA    FastCraft{1.25} [FastCraft] (fastcraft-1.25.jar) 
    UCHIJAAAA    bspkrsCore{6.15} [bspkrsCore] ([1.7.10]bspkrsCore-universal-6.15.jar) 
    UCHIJAAAA    Treecapitator{1.7.10} [Treecapitator] ([1.7.10]Treecapitator-universal-2.0.4 (1).jar) 
    UCHIJAAAA    appliedenergistics2{rv3-beta-6} [Applied Energistics 2] (appliedenergistics2-rv3-beta-6.jar) 
    UCHIJAAAA    ArchimedesShips{1.7.10 v1.7.1} [Archimedes' Ships] (Archimedes-Ships-Mod-1.7.10.jar) 
    UCHIJAAAA    BiomesOPlenty{2.1.0} [Biomes O' Plenty] (BiomesOPlenty-1.7.10- 
    UCHIJAAAA    bookshelf{} [Bookshelf] (Bookshelf-1.7.10- 
    UCHIJAAAA    CoFHCore{1.7.10R3.1.4} [CoFH Core] (CoFHCore-[1.7.10]3.1.4-329.jar) 
    UCHIJAAAA    BuildCraft|Core{7.1.23} [BuildCraft] (buildcraft-7.1.23.jar) 
    UCHIJAAAA    BuildCraft|Transport{7.1.23} [BC Transport] (buildcraft-7.1.23.jar) 
    UCHIJAAAA    BuildCraft|Factory{7.1.23} [BC Factory] (buildcraft-7.1.23.jar) 
    UCHIJAAAA    BuildCraft|Silicon{7.1.23} [BC Silicon] (buildcraft-7.1.23.jar) 
    UCHIJAAAA    BuildCraft|Robotics{7.1.23} [BC Robotics] (buildcraft-7.1.23.jar) 
    UCHIJAAAA    BuildCraft|Energy{7.1.23} [BC Energy] (buildcraft-7.1.23.jar) 
    UCHIJAAAA    BuildCraft|Builders{7.1.23} [BC Builders] (buildcraft-7.1.23.jar) 
    UCHIJAAAA    ChickenChunks{} [ChickenChunks] (ChickenChunks-1.7.10- (1).jar) 
    UCHIJAAAA    CoroAI{v1.0} [CoroAI] (CoroUtil-1.7.10.jar) 
    UCHIJAAAA    BuildMod{v1.0} [Build Mod] (CoroUtil-1.7.10.jar) 
    UCHIJAAAA    CoroPets{v1.0} [CoroPets] (CoroUtil-1.7.10.jar) 
    UCHIJAAAA    ExtendedRenderer{v1.0} [Extended Renderer] (CoroUtil-1.7.10.jar) 
    UCHIJAAAA    ConfigMod{v1.0} [Extended Mod Config] (CoroUtil-1.7.10.jar) 
    UCHIJAAAA    lootablebodies{1.3.7} [DrCyano's Lootable Bodies] (CyanosLootableBodies-1.7.10-backport_1.3.7.jar) 
    UCHIJAAAA    EnderStorage{} [EnderStorage] (EnderStorage-1.7.10- 
    UCHIJAAAA    ThermalFoundation{1.7.10R1.2.6} [Thermal Foundation] (Thermal-Foundation-Mod-1.7.10 (2).jar) 
    UCHIJAAAA    ThermalExpansion{1.7.10R4.1.5} [Thermal Expansion] (Thermal-Expansion-Mod-1.7.10.jar) 
    UCHIJAAAA    enhancedportals{3.0.12} [EnhancedPortals] (EnhancedPortals_1.7.10-universal-3.0.12.jar) 
    UCHIJAAAA    iChunUtil{4.2.3} [iChunUtil] (iChunUtil-4.2.3.jar) 
    UCHIJAAAA    inventorytweaks{1.58-147-645ca10} [Inventory Tweaks] (Inventory-Tweaks-Mod-1.7.10.jar) 
    UCHIJAAAA    IronChest{} [Iron Chest] (ironchest-1.7.10- 
    UCHIJAAAA    numina{1.7.10} [Numina] (Numina- 
    UCHIJAAAA    powersuits{1.7.10-} [MachineMuse's Modular Powersuits] (ModularPowersuits-1.7.10- 
    UCHIJAAAA    Morph{0.9.3} [Morph] (Morphing-Mod-1.7.10.jar) 
    UCHIJAAAA    NEIAddons{} [NEI Addons] (neiaddons- 
    UCHIJAAAA    NEIAddons|Developer{} [NEI Addons: Developer Tools] (neiaddons- 
    UCHIJAAAA    NEIAddons|AppEng{} [NEI Addons: Applied Energistics 2] (neiaddons- 
    UCHIJAAAA    NEIAddons|Botany{} [NEI Addons: Botany] (neiaddons- 
    UCHIJAAAA    NEIAddons|Forestry{} [NEI Addons: Forestry] (neiaddons- 
    UCHIJAAAA    NEIAddons|CraftingTables{} [NEI Addons: Crafting Tables] (neiaddons- 
    UCHIJAAAA    NEIAddons|ExNihilo{} [NEI Addons: Ex Nihilo] (neiaddons- 
    UCHIJAAAA    NetherOres{1.7.10R2.3.1} [Nether Ores] (NetherOres-[1.7.10]2.3.1-22.jar) 
    UCHIJAAAA    OreSpawn{} [OreSpawn] (orespawn-1.7.10-20.3) 
    UCHIJAAAA    PortalGun{4.0.0-beta-6} [PortalGun] (PortalGun-4.0.0-beta-6-fix-1 (2).jar) 
    UCHIJAAAA    secretroomsmod{4.7.1} [The SecretRoomsMod] (Secret-Rooms-Mod-1.7.10 (1).jar) 
    UCHIJAAAA    Shatter{4.0.0} [Shatter] (Shatter-Mod-1.7.10.jar) 
    UCHIJAAAA    voxelmap{1.7.10} [VoxelMap No Radar] (VoxelMap-No-Radar-Mod-1.7.10.jar) 
    UCHIJAAAA    Waila{1.5.10} [Waila] (Waila-1.5.10_1.7.10.jar) 
    UCHIJAAAA    weather2{v2.3.19} [Localized Weather & Storms] (weather2-1.7.10-2.3.20.jar) 
    GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.6.0 NVIDIA 388.13' Renderer: 'GeForce GT 520/PCIe/SSE2'
    AE2 Version: beta rv3-beta-6 for Forge
    CoFHCore: -[1.7.10]3.1.4-329
    ThermalFoundation: -[1.7.10]1.2.6-118
    ThermalExpansion: -[1.7.10]4.1.5-248
    NetherOres: -[1.7.10]2.3.1-22
    AE2 Integration: IC2:OFF, RotaryCraft:OFF, RC:OFF, BuildCraftCore:ON, BuildCraftTransport:ON, BuildCraftBuilder:ON, RF:ON, RFItem:ON, MFR:OFF, DSU:ON, FZ:OFF, FMP:OFF, RB:OFF, CLApi:OFF, Waila:ON, InvTweaks:ON, NEI:ON, CraftGuide:OFF, Mekanism:OFF, ImmibisMicroblocks:OFF, BetterStorage:OFF, OpenComputers:OFF, PneumaticCraft:OFF
    Launched Version: 1.7.10-Forge10.13.4.1448-1.7.10
    LWJGL: 2.9.1
    OpenGL: GeForce GT 520/PCIe/SSE2 GL version 4.6.0 NVIDIA 388.13, NVIDIA Corporation
    GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

    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: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
    Anisotropic Filtering: Off (1)

Could I have some help figuring out what is causing my minecraft to shut down internal server whenever i join a save file. Sometimes i can join successfully but then it crashes 5ish minutes into the game. None of the mods seem to cause the game to crash i have tried taking each one out be themself. I also tried groups of mods.





Edited by CrazyDude63
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1.7.10 is no longer supported on this forum due to its age.

Please update to a modern version of Minecraft to receive support.

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.


As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.


For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.


Logs (Most issues require logs to diagnose):


Please post logs using one of the following sites (Thank you Lumber Wizard for the list):

https://gist.github.com/100MB Requires member (Free)

https://pastebin.com/: 512KB as guest, 10MB as Pro ($$$)

https://hastebin.com/: 400KB

Do NOT use sites like Mediafire, Dropbox, OneDrive, Google Drive, or a site that has a countdown before offering downloads.


What to provide:

...for Crashes and Runtime issues:

Minecraft 1.14.4 and newer:

Post debug.log

Older versions:

Please update...


...for Installer Issues:

Post your installer log, found in the same place you ran the installer

This log will be called either installer.log or named the same as the installer but with .log on the end

Note for Windows users:

Windows hides file extensions by default so the installer may appear without the .jar extension then when the .log is added the log will appear with the .jar extension


Where to get it:

Mojang Launcher: When using the Mojang launcher debug.log is found in .minecraft\logs.


Curse/Overwolf: If you are using the Curse Launcher, their configurations break Forge's log settings, fortunately there is an easier workaround than I originally thought, this works even with Curse's installation of the Minecraft launcher as long as it is not launched THROUGH Twitch:

  1. Make sure you have the correct version of Forge installed (some packs are heavily dependent on one specific build of Forge)
  2. Make a launcher profile targeting this version of Forge.
  3. Set the launcher profile's GameDir property to the pack's instance folder (not the instances folder, the folder that has the pack's name on it).
  4. Now launch the pack through that profile and follow the "Mojang Launcher" instructions above.






or alternately, 


Fallback ("No logs are generated"):

If you don't see logs generated in the usual place, provide the launcher_log.txt from .minecraft


Server Not Starting:


If your server does not start or a command window appears and immediately goes away, run the jar manually and provide the output.


Reporting Illegal/Inappropriate Adfocus Ads:


Get a screenshot of the URL bar or copy/paste the whole URL into a thread on the General Discussion board with a description of the Ad.

Lex will need the Ad ID contained in that URL to report it to Adfocus' support team.


Posting your mod as a GitHub Repo:


When you have an issue with your mod the most helpful thing you can do when asking for help is to provide your code to those helping you. The most convenient way to do this is via GitHub or another source control hub.

When setting up a GitHub Repo it might seem easy to just upload everything, however this method has the potential for mistakes that could lead to trouble later on, it is recommended to use a Git client or to get comfortable with the Git command line. The following instructions will use the Git Command Line and as such they assume you already have it installed and that you have created a repository.


  1. Open a command prompt (CMD, Powershell, Terminal, etc).
  2. Navigate to the folder you extracted Forge’s MDK to (the one that had all the licenses in).
  3. Run the following commands:
    1. git init
    2. git remote add origin [Your Repository's URL]
      • In the case of GitHub it should look like: https://GitHub.com/[Your Username]/[Repo Name].git
    3. git fetch
    4. git checkout --track origin/master
    5. git stage *
    6. git commit -m "[Your commit message]"
    7. git push
  4. Navigate to GitHub and you should now see most of the files.
    • note that it is intentional that some are not synced with GitHub and this is done with the (hidden) .gitignore file that Forge’s MDK has provided (hence the strictness on which folder git init is run from)
  5. Now you can share your GitHub link with those who you are asking for help.

[Workaround line, please ignore]


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