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If you remove armorchroma does it still crash?

I think "ext.mappingsChannel" refers to a potential "ext" property of "minecraft", and that you need to start with the project. Try mappings channel: stuffiesss.ext.mappingsChannel, version: stuffiesss.ext.mappingsVersion

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Okay so I went to a different version of that mod and it booted right up, thank you

thx you saved my multiplayer world

Little Contraptions was the culprit

Alright, so when I try to play within the forge app, it doesn't work, but when I put forge on my minecraft launcher and add the mods it works, Thanks for the help

thanks it's working again thanks again

Backup and delete the config folder

This has already been the de-facto standard for quite a while now, but figured it would be a good idea to properly formalise it and make it clear for everyone. TL;DR: You can ask and offer support for Forge on any MC version, as long as you're not demanding it from staff and can accept that older versions may receive less attention due to people moving on to newer, shinier things. Tiered support policy There are now essentially three tiers of support: full, legacy and minimal. Full support This tier has dedicated channels for help on the Discord, gets priority for documentation, new features and bugfixes, and is generally considered the main focus for Forge development and support. Triage actively ports and backports things as needed for versions within this tier where time allows. The MC versions covered by this follows the existing "LTS" system. In other words, the latest MC version and select versions before it are covered by this tier. We recommend people consider using the newest version possible, as it's likely to be fully supported for longer. Exact versions covered under the full support tier can be found near the top of the FAQ. Legacy support This tier is for older versions of MC that are no longer covered by the full support tier. This tier gets less attention, but is still supported to some extent. To be clear, this is not a "no support" tier, but it is not the main focus. You're welcome to ask for help, submit PRs and help out, but please be aware that you may not get a response as quickly as these versions are generally not as popular anymore and may not have as many people around to help. Staff may still choose to work on these legacy versions and help people, but please don't demand it from them. Please note that due to the nature of the old toolchains used for building legacy versions, developing mods using the default MDK may not work. We also cannot easily publish updates to some of these old versions without your help - if you're interested in fixing this, please reach out to us. Minimal support This is rare and usually only applies to versions of MC where there's no legitimate reason to be using them. A real-world example of this is 1.20.3, which had a data loss bug that was fixed in 1.20.4 shortly after. All mods made for 1.20.3 work on 1.20.4, so there's no reason to use 1.20.3. We will help you update to the fixed version instead, but that's about it.

This FAQ has many guides and solutions - reading this before asking for help could save you a lot of time, as it accounts for the vast majority of issues people run into that we're aware of but can't fix on our end. Supported versions and platforms We only support Forge here. We cannot help you with Fabric, Spigot, etc... We support all versions under the tiered support policy. Full support for 1.21.5, 1.21.4, 1.21.3, 1.21.1, 1.20.6, 1.20.4 and 1.20.1 Legacy support for all other versions Minimal support for select versions (e.g. 1.20.3 - use 1.20.4 instead) More details here. Rules Piracy (aka "cracked launchers") and cheats (aka "PvP clients", "x-ray mods", etc...) are strictly forbidden here. When you need help, please always make a new thread. Do not post in old support threads. When making a new thread, you must include a link to your log on https://pastebin.com or https://paste.ee. Instructions on where to find this and how to upload it are in this forum post. Exit/error codes Here's a list of exit codes and what they mean: Error code 0: Someone clicked "Quit game" and the game closed successfully Error code 1 and -1: The game crashed, refer to the log and/or crash report for details Error code -1073741819: A game library crashed. Update your drivers and make sure you're using the right Java version Where can I find the debug.log and crash report? Official Minecraft launcher CurseForge app MultiMC/PolyMC/Prism launcher Where can I find the installer log? Where can I find the launcher log? Most of the time you don't need to share this, so only share it when asked by a support volunteer or when you're unable to find any debug.log or crash report. Official Minecraft launcher CurseForge app What version of Java do I need? | Minecraft version | Forge version | Java version | |-------------------|---------------|--------------| | 1.20.6 or newer | 50.x or newer | 21 | | 1.18 - 1.20.4 | 38.x or newer | 17 | | 1.17.1 | 37.x | 16 | | 1.16.5 or older | 36.x or older | 8 | How do I install Java? Windows macOS Linux How do I install the Forge client to the official Minecraft Launcher? How do I install the Forge server? Where can I find the forge.jar to start my server? Forge immediately crashes on launch without any mods installed, how do I fix it? Where can I find Forge mods? https://www.curseforge.com/minecraft/search?page=1&gameFlavorsIds=1 Make sure you download the right version of a mod for your Minecraft version. My game is lagging, how can I find the culprit? How do I update my drivers?

You could instead give the vanilla Jump Boost effect to the entity, but if the entity is a player, then they could tell they have Jump Boost.

Mate, I tried something in here and it worked, I don't know how, but it did. First thing to do. Open the Curseforge Launcher and click on Play, on the Modpack you are trying to Run. On the Launcher screen (this one: ) click on "Installations" and then Edit it. Click on "More Options" and redefine the JVM Arguments on there. Click Save and try to launch it. For me it worked, idk if it will work for you...

version 1.20.1