warjort

Try without any mods first. Usually when the game crashes without an error in the log it is a hard crash due to something else (e.g. an issue with your graphics card driver). That's why I asked for the launcher_log.txt which might have record the error. From my footer:

Actually arclight isn't even a mod, it's a fork of forge which isn't supported here. So you are in the wrong place. You need to ask them for help.

Your issue is with the "arclight" mod. Check you have the latest version then contact the mod author.

See: https://forums.minecraftforge.net/topic/122792-attempted-to-load-class-netminecraftclientkeymapping-for-invalid-dist-dedicated_server/

Level.getBlockState(BlockPos) You should also first check Level.isLoaded(BlockPos) to avoid unnecessary loading of chunks - or crashing if you try to do that on that client. If you don't have access to a Level, (either directly or from a player/entity) then you are probably doing something wrong.

First, this isn't a teaching forum. Nor is it a way for you use other people as a search engine. You need to do your own research (look at how vanilla does it or other mods) and try to implement it yourself. When you get stuck feel free to ask here. By that point you will have a better understanding and be able to ask more focused questions. And also better understand the answers. Anyway, obvious answers: Boss bar -> Look at the WitherBoss.bossEvent and how it gets used. Alternatives in vanilla are raids and the dragon. Structure -> An obvious vanilla example is OceanMonumentPiece.spawnElder() - the mob at the centre of ocean monuments. As for the staying in the structure, that is something you will have to code into the entity's AI. I am not aware of a mob that does that. There are plenty of AI goals that move towards different targets you might adapt? You would also need to consider how that works if some user decides to spawn your entity far away from the structure, e.g. using the /spawn command

Check you have the latest version then contact the mod or modpack author.

Just use the latest forge for 1.19.2: Forge 43.2.8 https://files.minecraftforge.net/net/minecraftforge/forge/index_1.19.2.html that way you will get other fixes as well.

Define "doesn't work"? One obvious thing I see from trying your mod, is your recipes are not being loaded because you haven't put them in a namespace (like your loot tables are). https://github.com/elytraByte/Boulanger/tree/master/src/main/resources/data

You can't staticly cache the level like that. You will cause memory leaks or worse. Putting non-singleton, non effectively immutable data in static fields is asking for trouble. Why do you need to call a method that isn't designed for the purpose you are using it for, when you already have the data in the "output" field? If you feel you must call a method, add a getOutput() method that takes no parameters.

One of your mods is trying to load client classes on the server. The incomplete log you show doesn't identify which mod. You probably have one the badly coded client side only mods installed? You can remove them from the server. Rubidium, Oculus, Not Enough Animations or Legendary ToolTips are the usual ones reported, but there are others. If its not one of those mods and the logs/debug.log doesn't give any further information then you will need to experiment with removing mods until you find the problem mod. Backup your world/save before removing mods.

The limits used by books come from the limits of NBT (used for networking and storing to file) which in turn come from legacy limits imposed by java serialization. If you look at java's DataOutput.writeUTF() it says the maximum size is 65535 characters. Minecraft actually uses 1/2 that, 32767, presumably in case all characters are double byte? If you want to increase the limits you would need to change how the page's text gets stored in NBT. e.g. using a List of Strings instead of a single String for each page. That would change the serialization format. For the vanilla books, that's not something Forge would do. Because Forge supports being a "vanilla" server for vanilla clients. Changing the serialization format would break the vanilla clients. Changing other fields like the number of pages or title length would also likely break the expectations of the vanilla guis. So basically if you want to do this, you would need to create your own book items and probably your own custom blocks like the Lectern and Bookshelves to support them. The problem with doing that is that things like the (Enchanted)BookItem are hardcoded by Mojang into the enchanting code. And not just the class, the actual object instances. There are probably other hardcodings?

You need to check the mods you download are for the version of minecraft you are using. https://www.curseforge.com/minecraft/mc-mods/jei/files/all?filter-game-version=1738749986%3a73250

The actual error is something to do with a custom banner material not being configured/registered properly. But this is while it is rendering a "Dread Knight" from the ice and fire mod. From the code, it looks like the dread knight is carrying the banner? You should check you have the latest version, then contact the mod author.

You need to check that the mods you install actually say they are compatible with the version of minecraft you are using. There is no updated 1.19.3 version of that mod. https://www.curseforge.com/minecraft/mc-mods/fastworkbench/files

Looks like you have something broken with chunk loading/generation? The crash does not give a hint which mod is causing the problem. Unless there is some other error in the logs/debug.log giving more information that points towards a specific mod, It is likely the only way you will find the problem mod is by experimenting with removing mods until the problem goes away. Since the problem is likely something doing world generation, you should do this on a separate world/save because; * You don't want to generate chunks with the wrong world generation in your real save * It probably won't let you even load the save if you remove a mod that does important world generation?

Mohist is not forge and isn't supported here. You need to speak to them. Either way, no mod that uses mixins will work with java 20, mixin only supports java 17

Neither shows an error. As I said, post the launcher_log.txt (from directly after the crash - do not restart the launcher).

If you look at the code you copied, it depends upon the "use item ticks". You don't have any code that makes the use take any time. Look at how the plain Item class handles items with FoodProperties or any other vanilla item that overrides Item.getUseDuration(). Or you can search github for other mods that does something similar to whatever you want to do. https://github.com/search?l=Java&q=IClientItemExtensions&type=Code

As the class name suggests, it runs at initialisation. Search your logs/debug.log towards the top. It is the callbacks within that class that run when you use the item.

That code works for me: assuming you don't have somewhere else that logs "AAAAAAAAAAA"? 🙂

max-tick-timeout in server.properties But that's not a proper solution. If something is taking more than 60 seconds on the server thread, it is badly designed. The modpack or mod authors should fix it.

Pirated minecraft is not supported in this forum.

Where is the code that registers that item? Instead of posting snippets in the forum and making us play a tortuous game of 20 questions, put the necessary code to reproduce the problem on github where we can see everything and maybe run it for ourselves if we can't spot the problem from just reading the code.