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Currently supported: All versions

Minecraft always crashes whenever I use any 1.5.2 forge versions on MultiMC

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in Support & Bug Reports

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Posted

Hi there, MCForge forums. I have been having a huge problem that I have been unable to fix and therefore have been unable to update Minecraft at all.

 

Anywho, the title states the gist of it: no matter what mods I have or do not have, if I have or do not have saves, or even when I play vanilla MC, whenever I add any version of forge 1.5.2 to one of my MultiMC instances it always crashes.

 

Thinking it was an issue with a mod(s) or save(s), I backed up my saves and mods, deleted them from the instances, and did a test on vanilla minecraft. However, even on vanilla minecraft, any 1.5.2 version of forge would crash the game. (Note that I tested vanilla minecraft without forge and it worked fine)

 

I have searched everywhere online and it seems no one else has had this problem or that their issues were easily fixed by removing mods when mine was not fixed that way.

 

Here's the crash log:

 

 

------------- MultiMC Crash Report -------------

Information:

Date: 05-23-2013 20:20:19

Operating System: Windows 7 (build 7601, Service Pack 1), 64-bit edition

MultiMC Version: 4.3.0 jenkins-MultiMC4Windows-76

Minecraft Version: Unknown

 

------------------ Mod Lists -------------------

Jar Mods:

minecraftforge-universal-1.5.2-7.8.0.710.zip

Version: 7.8.0.710

Filename: minecraftforge-universal-1.5.2-7.8.0.710.zip

 

 

 

----------------- Console Log ------------------

Instance folder is:

C:\Users\<username>\My Games\PC\Minecraft\Utilities\MultiMC\instances\Main\minecraft\

 

Instance started with command:

"C:\Program Files\Java\jre7\bin\java.exe"  -Xms256m -Xmx800m -jar MultiMCLauncher.jar  "<username>" "Offline" "MultiMC: Main Minecraft" "854x480" "Mojang"

 

Loading jars...

Loading URL: file:/C:/Users/<username>/My%20Games/PC/Minecraft/Utilities/MultiMC/instances/Main/minecraft/bin/minecraft.jar

Loading URL: file:/C:/Users/<username>/My%20Games/PC/Minecraft/Utilities/MultiMC/instances/Main/minecraft/bin/lwjgl.jar

Loading URL: file:/C:/Users/<username>/My%20Games/PC/Minecraft/Utilities/MultiMC/instances/Main/minecraft/bin/lwjgl_util.jar

Loading URL: file:/C:/Users/<username>/My%20Games/PC/Minecraft/Utilities/MultiMC/instances/Main/minecraft/bin/jinput.jar

Loading natives...

Exception in thread "main" java.lang.VerifyError: (class: net/minecraft/client/Minecraft, method: K signature: ()V) Incompatible argument to function

at java.lang.Class.getDeclaredFields0(Native Method)

at java.lang.Class.privateGetDeclaredFields(Unknown Source)

at java.lang.Class.getDeclaredFields(Unknown Source)

at MultiMCLauncher.getMCPathField(MultiMCLauncher.java:312)

at MultiMCLauncher.main(MultiMCLauncher.java:159)

Minecraft exited with code 1.

Minecraft has crashed!

 

 

Help is super appreciated because I'd love to play the newest versions of minecraft and my favorite mods again and I'm kinda sad that I can't right now. I will provide any extra info to help if needed. Thank you in advance!

This typically happens when you are running a version of forge that is not the same version of minecraft you're running.

 

I do Forge for free, however the servers to run it arn't free, so anything is appreciated.
Consider supporting the team on Patreon

  • Author

This typically happens when you are running a version of forge that is not the same version of minecraft you're running.

Firstly, thank you for the reply!

 

Secondly, wow I guess I'm on the wrong version of minecraft! On boot up the bottom left corner indeed says it is 1.5.1. Wow I feel like a moron

 

However, this brings me to a seperate issue: MultiMC tells me the version is, instead, 1.5.2 and that even when making a new instance with my minecraft jar it says it is 1.5.1, which I'm guessing is caused by the jar/original folder. How do I update my original minecraft's folder/jar?

 

Should I just run minecraft on its own without MultiMC, update it, back up all my stuff, and then remake the instances with the updated game folder, I guess?

 

EDIT: Aaaaaaand yep! That absolutely did the trick! My original minecraft is now 1.5.2! Now I just gotta replace the intances's files with the new ones, update forge and mods, and test it out.

 

Thank you so much for the help!

  • 7 years later...

um same problem as you, um and it has not been fixed forge refused to work on 1.15, 1.15.2 and 1.15.1 but it works fine on 1.8-1.14 help

Please don't Necro old threads, if you have an issue make your own.

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
  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.

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.

 

  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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https://forums.minecraftforge.net/topic/8708-minecraft-always-crashes-whenever-i-use-any-152-forge-versions-on-multimc/
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