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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 1.21.8, 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 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?

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!

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.

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.

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

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

This worked, thank you for the info, i am very appreciative

I just realised after you pointed it out that deeper and darker wasn't on the server that made it work thanks!

It works now, thank you

thank you!

That fixed it! Thank you so much

I did that, and then it crashed again, but this time it said something about ComputerCraft; so I disabled that mod and now it works. Thanks for the help!

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.

Thank you so much it works again

I'll admit I mostly read the rules and only glided through the FAQ. But thanks to you to guys it now works. I just had to install the right version of JAVA and get rid of a few mods that were only supposed to be for the client version and it worked. Thanks

Thanks just with removing ctov it worked so i wont add the log.

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

Okay think I got it solved. I reinstalled bclib and now it's opening the world gen creation. Thank you!

Make a test without the mod more_ores_and_resources

it worked thank you! do you know how i could add the shaders to a curseforge modpack?

Thank you I think it works now

Hello everyone, As the title suggests I'm new the the entire modding thing I used to make little game projects here and there and since I've started University I've taking Java and I fell in love with it somehow. So I have a couple of questions: Can I learn Java from modding the game (Yes I have the basics) can it expand my knowledge in this language? Does modding require massive teams (I've seen too many projects on curseforge that have like 3-6 contributors) or can I do it solo? Where to start? I know you might be thinking "Whats wrong with this guy just simply google what to do..." and for that I say "I did" and found too many results not saying its a bad thing just you know we have a common term in development in general and that's "Development hell" you guys are more experienced than I'm what tutorial series do you recommend? Why didn't I use Reddit for this question why the minecraftforge forums where we fix issues to modding not help beginners start? Because it gave me mental issues not saying this for attention but I really dislike the communities there are helpful somewhat but everything I said there regardless of what it is even a simple question in development will be bombarded with hateful comments cruelty and bullying and even worse grammar police , I truly hope that you guys aren't like this... Please forgive me for my English as I'm not an English speaker. I'm alright with you people criticizing me for the question or the stuff I said just don't be cruel , thanks in advance!

Dawnera is not working on a server

I solved this already, but basically I was getting java.io.EOFException while installing Forge. From the (scarce) other forum postings on this, I needed to either clear the temp directory or delete some folder in `.minecraft/libraries`. The other forum posts were for Windows, so I have no idea what temp folder they mean exactly, I doubt it is `/tmp`. If someone can clarify where the download cache is for the Forge installer on Linux, that would be really nice. Solution: In terminal, `cd` to your `.minecraft` folder, likely this command is what you want: `cd ~/.minecraft`. Run `find -name '*1.20.1*'`, or replace 1.20.1 with the version you're installing. This shows where the damaged files might be which cause this error. Very carefully, determine which folders are safe to delete with `rm -rf`. The commands I ran were: rm -rf ./versions/1.20.1* rm -rf ./libraries/de/oceanlabs/mcp/mcp_config/1.20.1* rm -rf ./libraries/net/minecraftforge/fmlcore/1.20.1-47.3.22 rm -rf ./libraries/net/minecraftforge/forge/1.20.1-47.3.22 rm -rf ./libraries/net/minecraftforge/mclanguage/1.20.1-47.3.22 After this I reran the install and it worked fine.

Blocky Siege requires GeckoLib to work

Dawnera is a client-side-only mod and not working on a server

Try the latest build: https://modrinth.com/mod/axiom/version/4.1.1

That seems to have fixed it, thank you!

Thank you, it works now.

It worked!! Thank you<3 Still need to clear out some mods from the memory problem it seems haha

You my man are a genius. Server is running now. I have some Server issues but i guess that depends on my RAM. Thank you!

ive added theoneprobe, crashed. i removed ascended quark and it works. make it make sense. thank you, TileEntity and please know i only had the courage to post here for help because i kept seeing how useful you are to everyone else so i am super glad you were the one to help me. thanks a lot!

Thank you, it helped!

I'd love any and all help for this issue. I'm trying to use Exaroton to start a small server up for me and my friends. I used the modpack HazardousDaniel's Unlimited 2.0 as the base and added a few extra mods to that modpack, including Cobblemon. I keep getting this error that disconnects me from the server: "Internal Exception: io.netty.handler.codec.DecoderException: Unknown serializer type 110". I try joining multiple times with both the IP of the server and the Dyn IP. I usually get different Unknown serializer type numbers too (some examples of the ones I've gotten are 98, 100, 101, 110, 115, etc.). Sometimes, it even lets me load into the world where I can move around for a moment before disconnecting me to these errors. When I take Cobblemon out of the modpack, the server allows me to join just fine, and playing with this modpack with Cobblemon in a singleplayer world also works just fine. I'd really like to keep Cobblemon in the modpack, but I've tried a couple different potential solutions I've seen online and none have worked for me. If anyone could read through the logs and understand what's happening, I'd appreciate it! Let me know if you need any other info. Log: https://mclo.gs/wBsSplt

Make a test without carryon

Looks like you need to use a newer forge, 40.2.14, or use versions of the mods in the error that are compatible with 40.2.0

yoo i found it

I solved it! The recipe was not being readed, basically; All I had to do is set the Items in the Json as Arrays Before: "item": { "minecraft:blue_dye" } After: "item": [ { "minecraft:blue_dye" } ] That's all, I added compatibility with JEI to verify and everything works, thanks anyways!

Make sure you are using Java 8 In the start script, replace the word java with the java 8 path to the javaw.exe and put it into quotation marks For example: "C:\Program Files\Java\jre1.8.0_311\bin\javaw.exe" -Xmx8G -Xms8G -jar forge-1.12.2-14.23.5.2860.jar pause

Remove the mod symbol-chat

Make a test without ImmersivePortals

i'm using Minecraft forge 1.21, idk what's causing this but when I click singleplayer, the game crashes with an error "The game crashed whilst rendering screen Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.world.level.LevelSettings.getLifecycle()" because "this.settings" is null" at first I thought it's because of a mod I am using but even when I have no mods in the mod folder, it still crashes.

There are more client-side mods - but not mentioned Add a screenshot of your mods-folder

Use Java 17 instead of Java 19 Also, there are some client-side-only mods in your server Start with removing Modernfix, Rubidium and Oculus from your server

Not 100% sure if it matters, but in your model file, where you specify the texture, you have a capital L on layer, and all my model files are all lowercase. You also have the texture looking in exemplemod:items/exemple_item, but I believe it should be exemplemod:item/exemple_item. also, you should always post/read the latest.log, it likely tells you it can't load the texture somewhere.