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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 26.1, 1.21.11, 1.21.10, 1.21.8, 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 Spoiler CurseForge app Spoiler MultiMC/PolyMC/Prism launcher Spoiler Where can I find the installer log? Spoiler 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 Spoiler CurseForge app Spoiler 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 Spoiler macOS Spoiler Linux Spoiler How do I install the Forge client to the official Minecraft Launcher? Spoiler How do I install the Forge server? Spoiler Where can I find the forge.jar to start my server? Spoiler Forge immediately crashes on launch without any mods installed, how do I fix it? Spoiler 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? Spoiler How do I update my drivers? Spoiler

Posting this because I spent more time on it than I’d like to admit, and I’ve seen others hit the same wall. The problemMy custom block registered correctly, appeared in the creative tab, but rendered as a missing texture cube. No errors at runtime, just a purple-black block. What I checked firstRegistry name was correct Blockstate JSON existed Model JSON paths looked fine Textures were in the right folder Everything looked correct. The actual issueThe problem was a mismatch between the blockstate JSON and model file names. Example mistake: blockstates/my_block.json models/block/myblock.json Forge does not warn you when these names don’t match exactly. The fixMake sure naming is consistent everywhere: blockstates models/block models/item registry name Also ensure that: JSON files are lowercase no extra underscores or hyphens exist resource reload cache is cleared Restarting the client after fixing resource paths helped immediately. TakeawayIf your block exists but renders wrong, the issue is almost always: naming mismatch resource path typo cached resource reload Hopefully this saves someone else an hour.

Unfortunately, it seems that Invision has decided that everything is locked down and no longer customizable. Their attitude to anyone who wants to edit anything is 'Just accept it we know best and screw you for even insinuating that you want to customize your own site' So there isn't much we can do about the layout of actual features. Best bet for the editor is that psudo markdown works, so typing ` around words make code blocks. Only options is to start writing bespoke modifications to the forum's php code itself, which I really don't want to do. I would of stayed on v4 but the version of PHP that it supports is going EOL and Invision has stated they have no intentions of upgrading it. They also removed the central community for finding plugins/community addons. Overall it is my feeling that they are intentionally trying to kill off self-hosting communities by removing features and locking things down, in an effort to force everyone into using their paid hosting services. My HOPE is that someone in the overall forum community will write an exporter for Invision to something like SMF. Which is what we were originally on before old team members decided enterprise software is better.

For some reason I can't place anything inside smithing table on forge 1.20.1, it doesn't show up as a recipe for netherite either in the JEI menu.

Forge for 1.21.6 and newer uses EventBus 7, which is a major rewrite. You can read the migration guide here, this explains how to cancel events.

Add the crash-report or latest.log (logs-folder) with sites like https://mclo.gs/ and paste the link to it here

And make a test without FarmersDelight

After much trial and error I also checked in with the COFH Discord and was able to find out that "DupeFix Project" was responsible for the crash (java.lang.NoClassDefFoundError: cofh/thermalexpansion/gui/container/storage/ContainerSatchel). After removing that mod everything worked.

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Thanks a lot! That worked! But could I perhaps get an explanation on why I had to get that specific one for that forge version to work?

In ItemTags there is a tag for VILLAGER_PLANTABLE_SEEDS, I would probably start by adding my seed to that tag. Look through the vanilla MC code, see how the regular wheat seed is used, and it should give you some pointers in the right direction. If you need more help, share your code (github is great, and for more than just that), and be descriptive about what is working/not working, what you did to test, etc.

Add the new crash-report - maybe there are more broken toml files

Re posting from another site but this modpack is gold and is criminally underrated, like PLAY THIS, but first help me with this grout, cept for this problem, to make grout to progress it's flint clay + clay thrown in molten slaked lime, all good, butttt molten slaked lime is like lava and burns the ingredients leaving me grout-less, it's the only way to progress and there is anti cheat that has been updated and can no longer be turned off with the method the author gave :). https://github.com/Origins-Eternity/Evolution-Reset/issues/4. Their r pictures of the world too, many hours, also lmk if anyone has time to play I work most of the time so it's a lot of odd hours, an ik Gregtech is better experienced alone anyway.

Thank u bro i can now start the server even tho i still have other visual errors, tsym

Start with removing holdmyitems from your server

I have no idea - is enough RAM allocated? Do other pre-configured modpacks work? Maybe use such a modpack as working base and add new mods one by one

Same issue without distanthorizons?

Its working now and I'm not sure why. It still doesn't say it's using the launch args in the console but my memory utilization in the gui says otherwise so its all good for now. Thanks for the help and if i manage to narrow down what fixed it ill post it here in case someone has the same problem in the future.

Thanks, I've now installed a slightly newer version and the server is at least starting up now.

I have the same problem, but after research I still can't find a solution. Can you give me your list of mods so I know if we have one in common, and if that's the reason?

Make a test without supplementaries and modernfix Did you add Vinery? Some mods require this one, but it looks like Vinery is missing https://www.curseforge.com/minecraft/mc-mods/lets-do-vinery

There is , even with a clean state it wont start up again , maybe something on the provider side , it works without so thank you

Looks like some kind of bug with vampiricageing - or a conflict with unusualprehistory

Update the AMD drivers: https://www.amd.com/en/support/downloads/previous-drivers.html/graphics/radeon-600-500-400/radeon-rx-500-series/radeon-rx-560.html

That was the issue, thank you.

I am not sure - but it is mentioned

I completely deleted curse forge and the Minecraft profiles off of my pc hard drive and reinstalled curse forge and now it works again so i must of have a corrupt file somewhere. Thanks for the help though.

Little Contraptions was the culprit

Ok, that really worked! Thank you a lot!

For the Create addons, add these one by one if you want to use these - some will work, some are incompatible - keep these removed

Ohhhhh, thank you very much!

It actually worked! Thank you so much, it has been ruinning my friend's experience as well and we believed it had no solution.

Thanks for your help anyways, you're amazing

ok, so you just have to go back to 1.20.1 to install the mrcrayfish controller support mod and everything will work perfectly

The config of UnionLib is invalid Delete the config of it (config folder) - if there is no change, try other builds of UnionLib

omg THANKK U yeah these two was the issues thank u

Add crash-reports with sites like https://mclo.gs/ Furnection (ls_furniture) and Mysticbiomes are not working - make a test without these mods

I got it to work! For some reason it was Create Steam & Rails crashing it.

It seems to work. Thank you very much!

I installed forge 1.16.5 -36.1.24 and and attempted to open a single player world to LAN to play with others on my network. The world seems to open to LAN fine, however, when I attempt to connect to the world from a second pc it does not seem to find the world. I then tried to direct connect but to no success, I received a connection timed out error. I then tested opening the world to LAN in vanilla and it worked and I could connect fine from the second pc. next I thought perhaps if I made a server on the host pc and connected to that from all other pc on the LAN it may work, however, once again this did not work. I have checked all firewalls, All pc's are connected to the same router via WIFI. This seems to be a problem with forge as LAN works well with vanilla Minecraft.

Do you mean waystones? You can use KubeJS to remove and add a changed recipe for it: https://www.curseforge.com/minecraft/mc-mods/kubejs Add KubeJS and start the modpack once to generate the files for the mod In your modpack folder, you will find now a kubejs folder Go to server_scripts (create the folder if missing) - yes, also for singleplayer, use the server_scripts folder Create a new file "reciperemove.js" Edit this file and add the recipe for the waypoint mod: ServerEvents.recipes(event => { let toRemove = [ {output: 'waystones:example_item'}, ]; for (const remove of toRemove) { event.remove(remove); } }) Just make sure you are using the correct item ID Create another file "recipes.js" in the server_scripts folder and use: ServerEvents.recipes(event => { event.shaped( Item.of('waystones:example_item'), [ 'AAA', 'BCB', 'AAA' ], { A: 'minecraft:stone', B: 'waystones:item_1', C: 'waystones:item_2' } ) }) The Letter Block with AAA etc is a crafting table - so there you define the recipe and the items

yep it works now! thank you!

thank you, it's working again thanks again

Wait I think that worked TY

Downgrade Create 6 to Create 5 Some Create addons are not working with Create 6 yet

Found out that the Culprit is "Create Stuff & Additions" thank you lots this has been doing my head in.

Make a test without the mod more_ores_and_resources

Hello! I think what you made is awesome! Sadly, I do not have discord. But I hope we can become great friends later on! Have a blessed weekend!

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.