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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?

Ive thought of something like this myself a while ago. Maybe it's something I could take on.

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.

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!

Honestly, the forums are a back burner thing. Not many people use it. Best option is discord. I know that I haven't looked at the forums for more then admin tasks in quite a while. You're also best off not following tutorials which give you code. Knowing programming and reading the MC/Forge code yourself would be the best way to go.

I myself am quite new to the modding scene, I started modding in February but have been in development hell a lot and have struggled to focus on one mod though I have been developing the current mod I've been working on since September and have made a lot of progress; during this time I have found a lot of helpful resources and have learnt a lot of things. 1. You can, I have had no Java experience previously and since modding have managed to be quite knowledgeable in Java. 2. Modding does not require massive teams, I and many others work alone, though having a team is certainly helpful in the modding process to get things done in a quicker and more organised way. 3. I absolutely have to recommend ModdingByKaupenjoe, he makes loads of tutorials for Minecraft from 1.16.5 and above with support for Forge, Fabric, and as of his 1.21 tutorials, Neoforge. These tutorials are really well made, covering almost every modding topic, (such as items, blocks, mobs, worldgen, etc.) and are pretty easy to follow, and Kaupenjoe always leaves the link to his GitHub repositories where you can view the code of that tutorial at your own pace as well as linking textures in the description of his videos for you to use. These forums are also quite good if you need help, though I have found that it sometimes takes a little while for a response but it is always worth the wait; from my experience the people on these forums have always been kind and helpful. There are also user-submitted tutorials that may be helpful as well. Using GitHub to search up a certain class that you are wanting to use in your mod is also quite helpful, the video I have linked goes into more detail. I would also recommend planning out your mod before you make it to have a clearer idea of how you want your mod to be, including sketches and annotations are also a good idea for this. It has helped me make progress a lot quicker when programming as I already know how I want things to look/act. I hope all this information helps!

Oh yes, the chameleon was the problem not sure why but it works without him, thanks!

I have a problem that I'm facing. Lets say you have a Modded server with AE2 or any other mod. Lets say you place a AE2 Block like you make a whole network. Then one day you decide to remove AE2 from your mods folder. You play the game and your blocks are gone. Then one day you want to add AE2 back but your blocks are gone forever. I need a mod that saves blocks and their block data even though its been removed. I have a server that oscillates from Modded to Vanilla every other day. And it's crucial to save modded block data. This also would apply for entities and items. Yeah that's basically it I don't know how easy it is to make a mod like that. Where the block/item/entitiy data doesnt get remove but thats currently what i need. Also if possible maybe create a temporary block replacement there until the mod has been added back.

By God, it worked. I'm.. in tears. Over the internet it wont be easily conveyed, but I'm deeply grateful to you. I got back into both world. As this happened with two modpacks it will probably happen again, but now I know what to do. You've made my week. Thanks ^^

If you are using AMD/ATI, get the latest drivers from their website - do not update via system

Add crash-reports with sites like https://mclo.gs/ Delete the json file at \.minecraft\config\byg\trades.json5

Thank you that was this mod indeed, it tried to spawn a structure at spawn but since It was already generated he was not able to and so crashed the server lol. I was looking for mod during the pregen and added it just before the ram issue, thank you

Maybe an issue with spawnstructures_forge

thanks!i tried and it's works now

Thank you anyways the server now starts!! You're amazing.

thanks that worked

ok, I downloaded "Slightly flavored" 1.21 and interestingly, way stones was included and worked without issue. I took a look, and the most recent version of it released was for 1.20, so I think it gave that version priority over the 1.21 version. I was curious, and looked into mahou Tsukai, and saw it had the same thing on its page. though when I tried manually installing the 1.21 versions, it still crashed on loading. I'm not sure why Waystones wasnt working previously, but I guess that issue is fixed, so its fine. I don't know why mahou is labeled as 1.21 if it crashes every time, but thats an issue with the mod creator then. I'll just have to wait for a new release

Thanks my guy this really helped me!

Yes - delete the jei-server.toml file

Maybe there are some more broken files - check the new crash-report - the file name is mentioned in the first lines If it is another crash, add it here

Looks like an issue with EC Compat for Apotheosis - try other builds of it or remove it Or try other builds of Apotheosis

I dont have that mod in my modpack but with it it work Thanks

Looks like it was The Midnight that was causing the crash. Unfortunate, but such is the reality of using mods. Thank you so much for your help!

That fixed it, thankyou so much for your help.

Thanks alot

Remove chunkanimator

thanks!

Try modify the build.gradle by: 1. Add 'MixinConfigs' : "${mod_id}.mixins.json" to the attributes array tasks.named('jar', Jar).configure { manifest { attributes([ .... ]) } } 2. Add a new block after the mixin block sourceSets { main { ext.refMap = "${modid}.refmap.json" } }

If you are using an AMD graphics card, update your drivers directly from their website, do not use windows update to update them.

Use Java 17 instead of Java 22 Do not use the OneDrive directory for your server

When I disable JEI on server, the problem disappears. Anyway, Thank you for help

That fixed it! Thank you so much! Do you know what mod could be interfering with it? No problem if not, you've already done plenty!

The problem was caused by the Farlands mod. May the next one to encounter that issue use my post to avoid hours of switch toggling.

I managed to figure it out on my own. The result should be id, however the recipes folder should have been named recipe. Thank you anyways though

try removing xaeros world map.

Thanks, it works now.

tried it, it worked! Thank you kind stranger. Still a weird bug with that version of forge, but everything works now so it's fine.

It worked, thank you very much 😭

Thank you so much!!!

Remove chunkanimator

Thanks man tried it and I think it is working now

i tested it and it worked! thanks so much

I think I've finally got it working. Thanks for helping with this issue it was quite a learning experience lol

Can’t believe I missed that ty, I’ll update the code when I’m able to hopefully no more issues after that lol

Looks like primitivetools and thaumcraft are conflicting

I already deleted the placeables mod and everything is working now, thanks anyway.

Can you try installing the latest version of tombstone and see if it fixes the crash

I have been playing Minecraft for a long time but today I wanted to play version 1.19.2 with horror mods, with friends on a server but today when I start the game it loads and everything only that when the game is about to start it stays for a while without responding and I get code 1

Fixed the problem by changing the way the OldBlockFields are passed to the FrozenBlock Entity : public FrozenBlockEntity(BlockPos blockPos, BlockState blockState) { super(BlockRegister.FROZEN_BLOCK_ENTITY.get(), blockPos, blockState); this.frozenBlockPos = blockPos; this.frozenBlock = ((FrozenBlock) blockState.getBlock()).getOldBlockState() != null ? ((FrozenBlock) blockState.getBlock()).getOldBlockState() : Blocks.AIR.defaultBlockState(); this.frozenEntity = ((FrozenBlock) blockState.getBlock()).getOldBlockEntity(); this.frozenEntityData = ((FrozenBlock) blockState.getBlock()).getOldBlockEntityData(); } public FrozenBlockEntity(BlockPos blockPos, BlockState blockState, BlockState oldBlockState, @Nullable BlockEntity frozenBlockEntity, @Nullable CompoundTag frozenEntityData) { super(BlockRegister.FROZEN_BLOCK_ENTITY.get(), blockPos, blockState); this.frozenBlockPos = blockPos; this.frozenBlock = oldBlockState != null ? oldBlockState : Blocks.AIR.defaultBlockState(); this.frozenEntity = frozenBlockEntity; this.frozenEntityData = frozenEntityData; }

So I'm trying to run an RLCraft on the Ubuntu server version, created mods file but when I try to use run.sh I get: Exception in thread "main" java.lang.IllegalArgumentException: kotlin.native.concurrent: Invalid package name: 'native' is not a Java identifier The current version of Java I have installed is: OpenJDK version "17.0.10" 2024-01-16 OpenJDK Runtime Environment (build 17.0.10+7-Ubuntu-122.04.1) OpenJDK 64-Bit Server VM (build 17.0.10+7-Ubuntu-122.04.1, mixed mode, sharing) I tried to manually input all of the RLCrafts files for the zipped server download by just unzipping and putting them into their dedicated places. EX: I removed the created mods file, then implemented it back in with all of the RLCrafts mods along with config. Then I added the stuff that was missing, like resource packs and resources the forge version I installed for the server was I think 1.20.2 or something like that I downloaded the recommend one This is my first time doing this plz help brain hurts