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I need help with my mc not starting

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Posted January 24, 20205 yr

I have an error and my Minecraft will launch but the on the screen it says to check my latest log and this is what it says.

[16:33:16] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[16:33:16] [main/INFO]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[16:33:16] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[16:33:16] [main/INFO]: Forge Mod Loader version 11.15.1.2318 for Minecraft 1.8.9 loading
[16:33:16] [main/INFO]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_51, running on Windows 10:amd64:10.0, installed at C:\Program Files (x86)\Minecraft Launcher\runtime\jre-x64
[16:33:16] [main/WARN]: The coremod io.prplz.mousedelayfix.FMLLoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:33:16] [main/INFO]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.8.9_HD_U_L5 (1).jar
[16:33:16] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:33:16] [main/INFO]: Loading tweak class name optifine.OptiFineForgeTweaker
[16:33:16] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[16:33:16] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:33:16] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:33:16] [main/INFO]: Calling tweak class optifine.OptiFineForgeTweaker
[16:33:16] [main/INFO]: [optifine.OptiFineForgeTweaker:dbg:56]: OptiFineForgeTweaker: acceptOptions
[16:33:16] [main/INFO]: [optifine.OptiFineForgeTweaker:dbg:56]: OptiFineForgeTweaker: injectIntoClassLoader
[16:33:16] [main/INFO]: [optifine.OptiFineClassTransformer:dbg:242]: OptiFine ClassTransformer
[16:33:16] [main/INFO]: [optifine.OptiFineClassTransformer:dbg:242]: OptiFine ZIP file: C:\Users\17244\AppData\Roaming\.minecraft\mods\OptiFine_1.8.9_HD_U_L5 (1).jar
[16:33:16] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[16:33:18] [main/INFO]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557
[16:33:18] [main/INFO]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
[16:33:18] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[16:33:18] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[16:33:18] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[16:33:19] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[16:33:19] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.TerminalTweaker
[16:33:19] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.TerminalTweaker
[16:33:19] [main/INFO]: [optifine.OptiFineForgeTweaker:dbg:56]: OptiFineForgeTweaker: getLaunchArguments
[16:33:19] [main/INFO]: Launching wrapped minecraft {net.minecraft.client.main.Main}
[16:33:20] [main/INFO]: [io.prplz.mousedelayfix.ClassTransformer:transform:23]: Found EntityLivingBase: pr
[16:33:20] [main/INFO]: [io.prplz.mousedelayfix.ClassTransformer:transform:30]: Found getLook: d
[16:33:20] [main/INFO]: [io.prplz.mousedelayfix.ClassTransformer:transform:32]: Found Entity: pk
[16:33:20] [main/INFO]: [io.prplz.mousedelayfix.ClassTransformer:transform:34]: Found EntityPlayerSP: bew
[16:33:20] [Client thread/INFO]: Setting user: _Reap_
[16:33:24] [Client thread/INFO]: [OptiFine] *** Reflector Forge ***
[16:33:24] [Client thread/INFO]: [OptiFine] (Reflector) Class not present: mods.betterfoliage.client.BetterFoliageClient
[16:33:26] [Client thread/INFO]: [OptiFine] *** Reflector Vanilla ***
[16:33:26] [Client thread/INFO]: LWJGL Version: 2.9.4
[16:33:27] [Client thread/INFO]: [OptiFine]
[16:33:27] [Client thread/INFO]: [OptiFine] OptiFine_1.8.9_HD_U_L5
[16:33:27] [Client thread/INFO]: [OptiFine] Build: 20191204-143016
[16:33:27] [Client thread/INFO]: [OptiFine] OS: Windows 10 (amd64) version 10.0
[16:33:27] [Client thread/INFO]: [OptiFine] Java: 1.8.0_51, Oracle Corporation
[16:33:27] [Client thread/INFO]: [OptiFine] VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
[16:33:27] [Client thread/INFO]: [OptiFine] LWJGL: 2.9.4
[16:33:27] [Client thread/INFO]: [OptiFine] OpenGL: GeForce MX150/PCIe/SSE2, version 4.6.0 NVIDIA 436.48, NVIDIA Corporation
[16:33:27] [Client thread/INFO]: [OptiFine] OpenGL Version: 4.6.0
[16:33:27] [Client thread/INFO]: [OptiFine] Maximum texture size: 32768x32768
[16:33:27] [VersionCheck/INFO]: [OptiFine] Checking for new version
[16:33:27] [VersionCheck/INFO]: [OptiFine] Version found: I7
[16:33:27] [Client thread/INFO]: [Shaders] OpenGL Version: 4.6.0 NVIDIA 436.48
[16:33:27] [Client thread/INFO]: [Shaders] Vendor: NVIDIA Corporation
[16:33:27] [Client thread/INFO]: [Shaders] Renderer: GeForce MX150/PCIe/SSE2
[16:33:27] [Client thread/INFO]: [Shaders] Capabilities: 2.0 2.1 3.0 3.2 4.0
[16:33:27] [Client thread/INFO]: [Shaders] GL_MAX_DRAW_BUFFERS: 8
[16:33:27] [Client thread/INFO]: [Shaders] GL_MAX_COLOR_ATTACHMENTS_EXT: 8
[16:33:27] [Client thread/INFO]: [Shaders] GL_MAX_TEXTURE_IMAGE_UNITS: 32
[16:33:27] [Client thread/INFO]: [Shaders] Load shaders configuration.
[16:33:27] [Client thread/INFO]: [Shaders] Save shaders configuration.
[16:33:27] [Client thread/INFO]: [Shaders] Shaders can not be loaded, Fast Render is enabled.
[16:33:27] [Client thread/INFO]: [Shaders] No shaderpack loaded.
[16:33:27] [Client thread/INFO]: [OptiFine] [Shaders] Delayed loading of block mappings after resources are loaded
[16:33:27] [Client thread/INFO]: [OptiFine] [Shaders] Delayed loading of item mappings after resources are loaded
[16:33:27] [Client thread/INFO]: [OptiFine] [Shaders] Delayed loading of entity mappings after resources are loaded
[16:33:27] [Client thread/WARN]: =============================================================
[16:33:27] [Client thread/WARN]: MOD HAS DIRECT REFERENCE System.exit() THIS IS NOT ALLOWED REROUTING TO FML!
[16:33:27] [Client thread/WARN]: Offendor: com/sun/jna/Native.main([Ljava/lang/String;)V
[16:33:27] [Client thread/WARN]: Use FMLCommonHandler.exitJava instead
[16:33:27] [Client thread/WARN]: =============================================================
[16:33:28] [Client thread/INFO]: [io.prplz.memoryfix.ResourcePackImageScaler:scalePackImage:16]: Scaling resource pack icon from 360 to 64
[16:33:28] [Client thread/INFO]: [io.prplz.memoryfix.ResourcePackImageScaler:scalePackImage:16]: Scaling resource pack icon from 128 to 64
[16:33:28] [Client thread/INFO]: [io.prplz.memoryfix.ResourcePackImageScaler:scalePackImage:16]: Scaling resource pack icon from 16 to 64
[16:33:28] [Client thread/INFO]: Forge Mod Loader has detected optifine OptiFine_1.8.9_HD_U_L5, enabling compatibility features
[16:33:28] [Client thread/INFO]: [net.minecraftforge.fml.client.SplashProgress:start:246]: ---- Minecraft Crash Report ----

WARNING: coremods are present:
FMLLoadingPlugin (MemoryFix-0.3.jar)
FMLLoadingPlugin (MouseDelayFix-1.0.jar)
Contact their authors BEFORE contacting forge

// Daisy, daisy...

Time: 1/24/20 4:33 PM
Description: Loading screen debug info

This is just a prompt for computer specs to be printed. THIS IS NOT A ERROR

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

-- System Details --
Details:
   Minecraft Version: 1.8.9
   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: 342074936 bytes (326 MB) / 939524096 bytes (896 MB) up to 4294967296 bytes (4096 MB)
   JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
   IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
   FML:
   Loaded coremods (and transformers):
FMLLoadingPlugin (MemoryFix-0.3.jar)
io.prplz.memoryfix.ClassTransformer
FMLLoadingPlugin (MouseDelayFix-1.0.jar)
io.prplz.mousedelayfix.ClassTransformer
   GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.6.0 NVIDIA 436.48' Renderer: 'GeForce MX150/PCIe/SSE2'
[16:33:28] [Client thread/INFO]: MinecraftForge v11.15.1.2318 Initialized
[16:33:28] [Client thread/INFO]: Replaced 229 ore recipies
[16:33:28] [Client thread/INFO]: Found 0 mods from the command line. Injecting into mod discoverer
[16:33:28] [Client thread/INFO]: Searching C:\Users\17244\AppData\Roaming\.minecraft\mods for mods
[16:33:31] [Client thread/WARN]: Mod memoryfix is missing the required element 'version' and a version.properties file could not be found. Falling back to metadata version 0.3
[16:33:31] [Client thread/WARN]: Mod animations is missing the required element 'version' and a version.properties file could not be found. Falling back to metadata version 5.3
[16:33:31] [Client thread/INFO]: Forge Mod Loader has identified 9 mods to load
[16:33:31] [Client thread/ERROR]: The mod ToggleSneak (ToggleSneak) requires mods [PlayerAPI] to be available
[16:33:31] [Client thread/ERROR]: Mod ToggleSneak (ToggleSneak) requires [PlayerAPI]
[16:33:31] [Client thread/INFO]: Reloading ResourceManager: Default, FMLFileResourcePack:Forge Mod Loader, FMLFileResourcePack:Minecraft Forge, FMLFileResourcePack:ToggleSneak, FMLFileResourcePack:Sidebar Mod Revamp, FMLFileResourcePack:Auto GG, FMLFileResourcePack:MemoryFix, FMLFileResourcePack:Orange's 1.7 Animations, Realistic Sky [By Fire Eagle - FE Gaming][Signature Removed].zip
[16:33:31] [Client thread/WARN]: There were errors previously. Not beginning mod initialization phase
[16:33:31] [Client thread/INFO]: [OptiFine] *** Reloading textures ***
[16:33:31] [Client thread/INFO]: [OptiFine] Resource packs: Realistic Sky [By Fire Eagle - FE Gaming][Signature Removed].zip
[16:33:32] [Sound Library Loader/INFO]: Starting up SoundSystem...
[16:33:32] [Thread-9/INFO]: Initializing LWJGL OpenAL
[16:33:32] [Thread-9/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[16:33:32] [Thread-9/INFO]: OpenAL initialized.
[16:33:32] [Sound Library Loader/INFO]: Sound engine started
[16:33:36] [Client thread/INFO]: [OptiFine] Mipmap levels: 4
[16:33:36] [Client thread/INFO]: [OptiFine] Multitexture: false
[16:33:36] [Client thread/INFO]: [OptiFine] BetterGrass: Parsing default configuration optifine/bettergrass.properties
[16:33:36] [Client thread/INFO]: Created: 16x16 textures-atlas
[16:33:36] [Client thread/INFO]: [OptiFine] Animated sprites: 0
[16:33:39] [Client thread/INFO]: [OptiFine] *** Reloading custom textures ***
[16:33:39] [Client thread/INFO]: [OptiFine] Enable face culling: acacia_leaves, birch_leaves, dark_oak_leaves, jungle_leaves, oak_leaves, spruce_leaves
[17:12:34] [Client thread/INFO]: Stopping!
[17:12:34] [Client thread/INFO]: SoundSystem shutting down...
[17:12:34] [Client thread/WARN]: Author: Paul Lamb, www.paulscode.com

January 24, 20205 yr

1.8 is no longer supported on this forum.

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.

Spoiler

Logs (Most issues require logs to diagnose):

Spoiler

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:

Spoiler

Make sure you have the correct version of Forge installed (some packs are heavily dependent on one specific build of Forge)
Make a launcher profile targeting this version of Forge.
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).
Now launch the pack through that profile and follow the "Mojang Launcher" instructions above.

Video:

Spoiler

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:

Spoiler

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:

Spoiler

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:

Spoiler

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.

Open a command prompt (CMD, Powershell, Terminal, etc).
Navigate to the folder you extracted Forge’s MDK to (the one that had all the licenses in).
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
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)
Now you can share your GitHub link with those who you are asking for help.

[Workaround line, please ignore]

This topic is now closed to further replies.

https://forums.minecraftforge.net/topic/80144-i-need-help-with-my-mc-not-starting/

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David Cristian

Hi

By David Cristian · Posted 4 hours ago4 hr
Why Has the Forge Development Forum Become So Empty?

I agree, and that's why I've enabled the RSS notifications for the forums on my phone. Often times it is difficult to share things on here that can be condensed into a single forum post. As for development, the discussion that happens on GitHub is not for releases but rather for the active development of the feature itself. I'm happy to discuss more things on the forums in the future, but I've been more focused on keeping my head down and getting things working. There's still a lot to do with the toolchain before I can do more things on the forums and the Forge project itself.

By Jonathing · 12 hours ago12 hr
I need a mod to help build something similar litematica

Try Structurize or Building Gadgets — they work great on Forge 1.20.1 and are probably the closest alternatives to Litematica.

By RyanMitch52 · 12 hours ago12 hr
Why Has the Forge Development Forum Become So Empty?

Yeah, you’re totally right — it’s been noticeably quieter here over the past few years. Most of the modding discussion has definitely shifted to Discord servers and sometimes Reddit, since they offer faster responses and real-time collaboration.
Forums like this used to be the main hub for documentation and troubleshooting, but now people prefer quick chats or sharing snippets on GitHub and Discord. The downside is that a lot of useful info gets buried or lost over time instead of being archived like it was here.

By RyanMitch52 · 12 hours ago12 hr
java.util.ConcurrentModificationException: null - Exception in server tick loop

Use Java 17 instead of Java 21

By TileEntity · 20 hours ago20 hr

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I need help with my mc not starting

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David Cristian

Why Has the Forge Development Forum Become So Empty?

I need a mod to help build something similar litematica

Why Has the Forge Development Forum Become So Empty?

java.util.ConcurrentModificationException: null - Exception in server tick loop

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