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@ashnel3
Last active May 18, 2023 19:08
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Crash landing installation:

Problem

2023-05-13 23:56:38 [SEVERE] [ForgeModLoader] Unable to launch
java.util.ConcurrentModificationException

Solution

    1. Download CrashLanding
platform link
curseforge https://www.curseforge.com/minecraft/modpacks/crash-landing/files
    1. (Optional) add optifine
platform link
archive.org https://archive.org/download/opti-fine-1.6.4-hd-d-1
    1. Create a new CrashLanding instance in your launcher
    1. Update Forge to version: 9.11.1.1345
    1. Add this to your java arguments
-Dfml.ignoreInvalidMinecraftCertificates=true
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