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Linkage Error while loading Main Class #1613

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orian34 opened this issue Apr 23, 2024 · 9 comments
Open
2 tasks done

Linkage Error while loading Main Class #1613

orian34 opened this issue Apr 23, 2024 · 9 comments

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@orian34
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orian34 commented Apr 23, 2024

  • I searched the issue tracker for other issues covering my case
  • This is a Launcher issue. (Usually if you can reproduce it with a fresh instance)

Describe the bug
While trying to play on a 1.20.5 instance, I get an error and it refuses to launch.

To Reproduce
Steps to reproduce the behavior:

  1. Install a vanilla 1.20.5 instance.
  2. Try to launch the instance.
  3. See error

Operating System:

  • OS: [Windows 10]
  • Launcher Version: [v1.1.30]
  • Java Version: [17]
  • Minecraft Version: [1.20.5]

Additional context
I have tried to reinstall JDK 22 but it didn't change anything.
The error text:
ps stderr: Error: LinkageError occurred while loading main class net.minecraft.client.main.Main
java.lang.UnsupportedClassVersionError: net/minecraft/client/main/Main has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0
@Eskaan
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Eskaan commented Apr 26, 2024

Are you sure it uses the correct java binary?

@orian34
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orian34 commented Apr 26, 2024

What would be the correct binary? How would I see that

@Eskaan
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Eskaan commented Apr 26, 2024

I would look into the java settings for that instance or at the launch command (in the console).

@orian34
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orian34 commented Apr 28, 2024 •
edited

I would look into the java settings for that instance or at the launch command (in the console).

I looked at it's using java 17, which I assume is the correct one?
I tried launching after deleting my custom launch arguments but it didn't change so it doesn't seem to be that either.

....\java\17.0.1+12\bin\java.exe

@Boyarnikov
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Boyarnikov commented Apr 28, 2024 •
edited

Having the same issue with linkage
Creating new instance of 1.20.5 with or without fabric gets the same error. No such error accures when creating any other version (tested with 1.20.4, 1.20, 1.19)

<html>UnsupportedClassVersionError: net/minecraft/client/main/Main has been compiled by a more recent version of the Java<br>Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0</html>

<html>at java.base/java.lang.ClassLoader.defineClass1(Native Method)<br>at java.base/java.lang.ClassLoader.defineClass(Unknown Source)<br>at java.base/java.security.SecureClassLoader.defineClass(Unknown Source)<br>at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.defineClassFwd(KnotClassLoader.java:160)<br>at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:355)<br>at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:218)<br>at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)<br>at java.base/java.lang.ClassLoader.loadClass(Unknown Source)<br>at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:463)<br>at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)<br>at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)</html>

Same Operating System env as op

@Eskaan
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Eskaan commented Apr 28, 2024

Hm, as to my knowledge the current msrv is Java 17. You could try with a newer version if you want.

@orian34
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orian34 commented Apr 28, 2024

Mmh, I'm not sure what newer version you're talking about?
I tried checking but the existing jdk 17 installed seems to be the latest. Is it meaning a GD version?

@orian34
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orian34 commented May 10, 2024

Alright, so after looking more, I had to manually change the java used by GD launcher to use the one I had installed in program files(jdk 22) and now I'm able to launch minecraft.

The problem then is that GD launcher has an automatic version which doesn't work for 1.20.5+
Probably something to look into.

@Boyarnikov
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Eather i did not correctly changed java manualy or it did not work for me. However, after reinstalling GD launcher (and updating it to a newest version) and running autoinstall for java inside client i am able to install all minecraft versions without getting the error.

For anyone who is having this issue i suggest to check if your current version of the laucher up to data.

@theofficialgman theofficialgman mentioned this issue May 31, 2024
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@orian34 @Boyarnikov @Eskaan