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I want to use Clay Soldiers and Galacticraft with a few addons (GalaxySpace, etc.) I start up Forge 1.7.10, and the Game starts up just fine. I load into a world, and then it crashes, saying something about the FMLRenderAccessLibrary. I'm not good at this stuff, can someone please help me out?


---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 10/3/19 7:53 PM
Description: Unexpected error

java.lang.NoClassDefFoundError: net/minecraft/src/FMLRenderAccessLibrary
    at GobBob.AnimatedBlocks.client.renderer.ABRenderBlocks.func_147805_b(ABRenderBlocks.java:444)
    at GobBob.AnimatedBlocks.client.renderer.ABWorldRenderer.func_147892_a(ABWorldRenderer.java:237)
    at GobBob.AnimatedBlocks.client.renderer.ABRenderGlobal.func_72716_a(ABRenderGlobal.java:1652)
    at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1187)
    at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1011)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1001)
    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)
Caused by: java.lang.ClassNotFoundException: net.minecraft.src.FMLRenderAccessLibrary
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 14 more
Caused by: java.lang.NullPointerException

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

-- Head --
    at GobBob.AnimatedBlocks.client.renderer.ABRenderBlocks.func_147805_b(ABRenderBlocks.java:444)
    at GobBob.AnimatedBlocks.client.renderer.ABWorldRenderer.func_147892_a(ABWorldRenderer.java:237)
    at GobBob.AnimatedBlocks.client.renderer.ABRenderGlobal.func_72716_a(ABRenderGlobal.java:1652)
    at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1187)

-- Affected level --
    Level name: MpServer
    All players: 0 total; []
    Chunk stats: MultiplayerChunkCache: 180, 180
    Level seed: 0
    Level generator: ID 04 - BIOMESOP, ver 0. Features enabled: false
    Level generator options: 
    Level spawn location: World: (142,64,1234), Chunk: (at 14,4,2 in 8,77; contains blocks 128,0,1232 to 143,255,1247), Region: (0,2; contains chunks 0,64 to 31,95, blocks 0,0,1024 to 511,255,1535)
    Level time: 154 game time, 154 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: 69 total; [EntityBat['Bat'/128, l='MpServer', x=71.20, y=10.05, z=1230.46], EntityBat['Bat'/259, l='MpServer', x=164.81, y=25.37, z=1201.47], EntitySkeleton['Skeleton'/260, l='MpServer', x=162.50, y=44.00, z=1208.50], EntitySkeleton['Skeleton'/261, l='MpServer', x=165.50, y=44.00, z=1208.50], EntitySheep['Sheep'/262, l='MpServer', x=172.50, y=68.00, z=1289.69], EntitySheep['Sheep'/263, l='MpServer', x=172.50, y=69.00, z=1293.50], EntitySheep['Sheep'/264, l='MpServer', x=172.78, y=69.00, z=1295.50], EntitySheep['Sheep'/265, l='MpServer', x=171.19, y=69.00, z=1295.50], EntitySkeleton['Skeleton'/266, l='MpServer', x=168.50, y=17.00, z=1311.50], EntitySkeleton['Skeleton'/267, l='MpServer', x=167.50, y=17.00, z=1310.50], EntitySkeleton['Skeleton'/268, l='MpServer', x=167.50, y=17.00, z=1309.50], EntitySkeleton['Skeleton'/269, l='MpServer', x=166.50, y=17.00, z=1309.50], EntityCreeper['Creeper'/279, l='MpServer', x=178.50, y=21.00, z=1172.50], EntityCreeper['Creeper'/280, l='MpServer', x=179.50, y=21.00, z=1173.50], EntityItem['item.tile.gravel'/281, l='MpServer', x=181.88, y=17.13, z=1198.88], EntityCreeper['Creeper'/282, l='MpServer', x=183.50, y=39.00, z=1219.50], EntityCreeper['Creeper'/155, l='MpServer', x=107.50, y=33.00, z=1180.00], EntityChicken['Chicken'/156, l='MpServer', x=96.88, y=71.00, z=1288.56], EntityChicken['Chicken'/157, l='MpServer', x=96.50, y=71.00, z=1292.50], EntitySkeleton['Skeleton'/286, l='MpServer', x=183.16, y=17.00, z=1278.06], EntityChicken['Chicken'/158, l='MpServer', x=97.34, y=71.00, z=1291.59], EntitySkeleton['Skeleton'/287, l='MpServer', x=181.46, y=15.14, z=1274.48], EntityChicken['Chicken'/159, l='MpServer', x=98.50, y=71.00, z=1288.50], EntitySkeleton['Skeleton'/289, l='MpServer', x=177.50, y=14.00, z=1286.50], EntitySkeleton['Skeleton'/167, l='MpServer', x=113.50, y=34.00, z=1175.50], EntityBat['Bat'/168, l='MpServer', x=118.46, y=37.89, z=1178.23], EntityChicken['Chicken'/171, l='MpServer', x=127.50, y=65.00, z=1260.50], EntityItem['item.tile.mushroom'/177, l='MpServer', x=133.72, y=41.13, z=1176.16], EntityItem['item.tile.mushroom'/178, l='MpServer', x=134.88, y=41.13, z=1172.88], GCEntityClientPlayerMP['WolfiteGaming'/419, l='MpServer', x=139.50, y=73.62, z=1235.50], EntityCreeper['Creeper'/179, l='MpServer', x=129.50, y=26.00, z=1213.50], EntityItem['item.tile.flowers.clover'/180, l='MpServer', x=128.22, y=72.13, z=1204.41], EntityItem['item.item.seeds'/181, l='MpServer', x=128.53, y=74.13, z=1212.88], EntityChicken['Chicken'/182, l='MpServer', x=130.50, y=72.00, z=1256.50], EntityChicken['Chicken'/183, l='MpServer', x=128.50, y=70.00, z=1256.50], EntityChicken['Chicken'/184, l='MpServer', x=129.50, y=69.00, z=1258.50], WormMedium['Medium Worm'/186, l='MpServer', x=143.50, y=66.66, z=1295.50], EntityZombie['Zombie'/316, l='MpServer', x=217.31, y=16.44, z=1156.69], EntityChicken['Chicken'/317, l='MpServer', x=210.50, y=66.00, z=1183.78], WormMedium['Medium Worm'/190, l='MpServer', x=143.50, y=66.66, z=1294.50], EntityChicken['Chicken'/318, l='MpServer', x=209.97, y=66.00, z=1182.59], EntityItem['item.item.seeds'/192, l='MpServer', x=143.13, y=11.13, z=1298.13], EntityChicken['Chicken'/320, l='MpServer', x=212.50, y=67.00, z=1185.50], WormMedium['Medium Worm'/193, l='MpServer', x=140.50, y=66.62, z=1297.50], EntityChicken['Chicken'/321, l='MpServer', x=207.81, y=67.00, z=1185.02], WormMedium['Medium Worm'/196, l='MpServer', x=141.50, y=66.62, z=1298.50], WormMedium['Medium Worm'/197, l='MpServer', x=143.50, y=66.62, z=1298.50], EntityCreeper['Creeper'/214, l='MpServer', x=158.03, y=26.00, z=1164.63], EntityChicken['Chicken'/217, l='MpServer', x=146.50, y=68.00, z=1190.50], EntityChicken['Chicken'/218, l='MpServer', x=144.66, y=68.00, z=1190.50], EntityChicken['Chicken'/219, l='MpServer', x=145.50, y=68.00, z=1187.50], EntityChicken['Chicken'/220, l='MpServer', x=145.34, y=68.00, z=1194.03], EntityCreeper['Creeper'/221, l='MpServer', x=156.50, y=25.00, z=1213.50], EntityCreeper['Creeper'/222, l='MpServer', x=155.50, y=26.00, z=1232.50], WormMedium['Medium Worm'/223, l='MpServer', x=146.50, y=65.62, z=1293.50], WormMedium['Medium Worm'/224, l='MpServer', x=145.50, y=65.62, z=1293.50], WormMedium['Medium Worm'/225, l='MpServer', x=144.50, y=66.66, z=1294.50], WormMedium['Medium Worm'/226, l='MpServer', x=146.50, y=65.62, z=1295.50], WormMedium['Medium Worm'/227, l='MpServer', x=144.50, y=66.66, z=1295.50], WormLarge['Large Worm'/229, l='MpServer', x=144.50, y=66.52, z=1297.50], WormMedium['Medium Worm'/232, l='MpServer', x=145.50, y=66.62, z=1297.50], WormMedium['Medium Worm'/233, l='MpServer', x=147.50, y=66.62, z=1297.50], WormMedium['Medium Worm'/235, l='MpServer', x=146.50, y=65.66, z=1296.50], WormMedium['Medium Worm'/240, l='MpServer', x=144.50, y=66.62, z=1299.50], WormMedium['Medium Worm'/244, l='MpServer', x=144.50, y=66.62, z=1297.50], WormMedium['Medium Worm'/246, l='MpServer', x=147.50, y=65.66, z=1296.50], WormMedium['Medium Worm'/248, l='MpServer', x=144.50, y=66.62, z=1297.50], WormMedium['Medium Worm'/249, l='MpServer', x=146.50, y=65.66, z=1296.50], EntityItem['item.item.seeds'/125, l='MpServer', x=79.28, y=63.13, z=1180.63]]
    Retry entities: 0 total; []
    Server brand: fml,forge
    Server type: Integrated singleplayer server
    at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:373)
    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: 468506176 bytes (446 MB) / 1006632960 bytes (960 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: 4, tcache: 0, allocated: 13, tallocated: 96
    FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 18 mods loaded, 18 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    Micdoodlecore{} [Micdoodle8 Core] (minecraft.jar) 
    UCHIJAAAA    mod_ThreadedLighting{1.7.10-1.0} [Threaded Lighting] (minecraft.jar) 
    UCHIJAAAA    sapmanpack{2.7.2} [SanAndreasPs Manager Pack CORE edition] (SAPManPack-1.7.10-2.7.2.jar) 
    UCHIJAAAA    gilded-games-util{1.7.10-1.2} [Gilded Games Utility] (gilded-games-util-1.7.10-1.9.jar) 
    UCHIJAAAA    claysoldiers{2.0.0-beta.2} [Clay Soldiers Mod] ([Minecraft-INSIDE.com] clay-soldiers-mod-1.7.10.jar) 
    UCHIJAAAA    ExtraUtilities{1.1.0k} [Extra Utilities] (_Extra-Utilities-Mod-1.7.10.jar) 
    UCHIJAAAA    animatedblocks{v0.2 for 1.7.10} [Animated Blocks] (Animated-Blocks-Mod-1.7.10.jar) 
    UCHIJAAAA    BiomesOPlenty{2.1.0} [Biomes O' Plenty] (BiomesOPlenty-1.7.10- 
    UCHIJAAAA    dsurround{} [Dynamic Surroundings] (DynamicSurroundings-1.7.10- 
    UCHIJAAAA    GalacticraftCore{3.0.12} [Galacticraft Core] (GalacticraftCore-1.7- 
    UCHIJAAAA    GalacticraftMars{3.0.12} [Galacticraft Planets] (Galacticraft-Planets-1.7- 
    UCHIJAAAA    ExtraPlanets{1.7.10-2.1.2} [Extra Planets] (ExtraPlanets-1.7.10-2.1.2.jar) 
    UCHIJAAAA    GalaxySpace{1.2.4} [GalaxySpace] (Galaxy-Space-Mod-1.7.10.jar) 
    UCHIJAAAA    OreSpawn{} [OreSpawn] (orespawn-1.7.10-20.3.zip) 
    UCHIJAAAA    worldedit{6.1.1} [WorldEdit] (worldedit-forge-mc1.7.10-6.1.1-dist.jar) 
    GL info: ' Vendor: 'ATI Technologies Inc.' Version: '4.5.13469 Compatibility Profile Context 21.19.526.1026' Renderer: 'AMD Radeon(TM) R2 Graphics'
    Launched Version: 1.7.10-Forge10.13.4.1614-1.7.10
    LWJGL: 2.9.1
    OpenGL: AMD Radeon(TM) R2 Graphics GL version 4.5.13469 Compatibility Profile Context 21.19.526.1026, ATI Technologies Inc.
    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: [vanilla]
    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)

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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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