(SOLVED) [Pandora] Cannot launch 1.20.4 client with mods | Axiom | Page 1

crisp jayBOT Jan 14, 2026, 1:22 PM

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@copper niche sent a log,

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@copper niche sent a log,

copper niche Jan 14, 2026, 1:23 PM

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huh

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[Pandora] Cannot launch 1.20.4 client with mods

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tall storm Jan 14, 2026, 1:48 PM

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try using java 21 or remove ScheduledTickVisualizer

copper niche Jan 14, 2026, 2:21 PM

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tall storm try using java 21 or remove ScheduledTickVisualizer

hmm but how can i choose java21 for pandora launcher

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i also saw moulberry said it shud select the correct java somehow

tall storm Jan 14, 2026, 2:26 PM

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thats referring to the right java version for the minecraft version probably
if mods have weird requirements it wont adjust for that I guess
the ability to change was added in this stream #announcements message

maybe you need to compile the latest version yourself to get the latest changes

burnt laurelBOT Jan 14, 2026, 2:26 PM

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https://youtu.be/Mr1f9N_FsKc

Moulberry

Pandora Launcher Beta Release/Overview

Download: https://pandora.moulberry.com
GitHub: https://github.com/Moulberry/PandoraLauncher

copper niche Jan 14, 2026, 2:28 PM

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tall storm thats referring to the right java version for the minecraft version probably if ...

hmm sry i cant find the way to change the required java version

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is it the JVM thing?

tall storm Jan 14, 2026, 2:29 PM

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you could also uninstall all java versions but java 21

copper niche Jan 14, 2026, 2:29 PM

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but i still have old version instances that i play on

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so i cnt uninstall the other java versions

tall storm Jan 14, 2026, 2:56 PM

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https://github.com/Moulberry/PandoraLauncher compile it yourself or wait for the next update idk

copper niche Jan 15, 2026, 1:00 AM

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ill wait for next update ig

copper niche Jan 23, 2026, 11:57 AM

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tall storm https://github.com/Moulberry/PandoraLauncher compile it yourself or wait for the...

hmm is it possible if someone can share a compiled one to test out?

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i found that in the folders there are like java-runtime-gamma that i think contains the java17

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i tried swapping out content inside to java21 but it didnt work

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also tried to delete the folder, it seems to jsut create a new gamma folder and maybe uses it

copper niche Jan 23, 2026, 6:32 PM

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damn one thing that might be worth mentioning is, when using some modpacks that has default config and options files, it can overwrite existing config and options file

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glad i had a backup options and config, otherwise will be super fked

tall storm Jan 31, 2026, 4:26 PM

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copper niche ill wait for next update ig

https://github.com/Moulberry/PandoraLauncher/releases/tag/v2.6.2

GitHub

Release v2.6.2 · Moulberry/PandoraLauncher

copper niche Jan 31, 2026, 4:33 PM

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tall storm https://github.com/Moulberry/PandoraLauncher/releases/tag/v2.6.2

thanks!

copper niche Feb 3, 2026, 11:11 AM

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tall storm https://github.com/Moulberry/PandoraLauncher/releases/tag/v2.6.2

hmm, it still seems to force use java17 for me, where can i choose to customize java version?

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Incompatible mods found!
net.fabricmc.loader.impl.FormattedException: Some of your mods are incompatible with the game or each other!
A potential solution has been determined, this may resolve your problem:
- Replace 'OpenJDK 64-Bit Server VM' (java) 17 with version 21 or later.
More details:
- Mod 'ScheduledTickVisualizer' (scheduledtickvisualizer) 1.3.0+1.20.1-fabric requires version 21 or later of 'OpenJDK 64-Bit Server VM' (java), but only the wrong version is present: 17!
at net.fabricmc.loader.impl.FormattedException.ofLocalized(FormattedException.java:51)
at net.fabricmc.loader.impl.FabricLoaderImpl.load(FabricLoaderImpl.java:202)
at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:142)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:66)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:569)
at com.moulberry.pandora.LaunchWrapper.main(LaunchWrapper.java:29)