Uncaught Fatal Exception code: 1

[Boyownik]

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

Describe the bug I just updated GT:NH pack and when I tried launch it it throws error: Uncaught Fatal Exception code: 1. What I've tried:

• Fresh instance with latest version of pack
• Fresh instance with version I have been playing before
• Remove Java Args
• Deleted all Java versions, installed newest J8 via automatic tool

What I've noticed that the pre-launch scripts for pack using java that download additional custom stuff is working fine. It launches when i click Play in launcher, downloads and verifies stuff. Then when i click OK Minecraft should start but error is thrown. Note here - it worked fine before update of modpack.

To Reproduce Steps to reproduce the behavior:

1. Install latest version of GT:NH modpack,

Expected behavior Start of the game.

Possible solutions No idea

Screenshots

Operating System:

• OS: Windows 11
• Launcher Version: 1.1.29
• Java Version: 8 312-b07
• Minecraft Version: 1.7.10
• Mod Loader: Forge

Additional context None

[Eskaan]

It is most likely an issue with the modset of the Modpack. Maybe some mod failed to download.