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[SOLVED] Unmodded Forge 1.14.3 Crashes On Load

Feline Fowl

By Feline Fowl
in Support & Bug Reports

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Feline Fowl Tree Puncher

Feline Fowl

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I installed Forge using forge-1.14.3-27.0.25-installer.jar file, launched from the same drive that Minecraft is installed on, however it also fails when launched from any drive. Forge appears in the game list as 1.14.3-forge-27.0.25 (https://i.imgur.com/lzh2bxe.png), but when attempting to launch the game, the client disappears and then says the game crashed due to an unexpected issue (https://i.imgur.com/tJTPhAX.png). I have absolutely no mods installed, and happens when even creating a new empty Forge installation through the launcher. I have also made sure Minecraft 1.14.3 has launched at least once before and after installation of Forge. There's a button that says "View crash report", however like most of these buttons (such as the "Browse" button when creating a new game installation) it does absolutely nothing. I believe the crash log is located in "~/.minecraft/logs/latest.log", and the log file the EAQ asks for does not exist - I don't have a "debug.log" file (https://i.imgur.com/iExkZlc.png). If I am looking in the wrong location, please let me know. I'll provide both the installer.log and the latest.log files at the end of the post via a Pastebin link.

 

System Information

OS: Manjaro Linux w/ KDE Plasma 5.16 & Linux Kernel 4.19

CPU: Intel i5-6500

GPU: AMD Sapphire RX 480 (8GB)

RAM: 16GB

 

Minecraft version: 1.14.3

Launcher version: 2.1.5410

 

Minecraft "latest.log" crash: https://pastebin.com/SV7vvb1H

Forge "installer.log" file: https://paste.ee/p/UNjWk (was too big for Pastebin, sorry)

Edited by Feline Fowl
Cadiboo Reality Controller

Cadiboo

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Forge is trying to load a class file compiled with Java 12. Forge currently doesn’t support this apparently. Forge is planning to update to ASM 7 soon, which will fix this. I’m not sure which file it’s trying to load, so I’m not sure what you can do about it.

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IllegalArgumentException: Unsupported class file major version 56

  at org.objectweb.asm.ClassReader.<init>(ClassReader.java:176)

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Versions below 1.14.4 are no longer supported on this forum. Use the latest version to receive support.

When asking support remember to include all relevant log files (logs are found in .minecraft/logs/), code if applicable and screenshots if possible.

Only download mods from trusted sites like CurseForge (minecraft.curseforge.com). A list of bad sites can be found here, with more information available at stopmodreposts.org

Edit your own signature at www.minecraftforge.net/forum/settings/signature/ (Make sure to check its compatibility with the Dark Theme)

DaemonUmbra Reality Controller

DaemonUmbra

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Use Java 8 to run Forge

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.

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