Ugdhar

You shouldn't post a screenshot if it's not yours for something like this. Just saying, it's misleading and doesn't really help. So I'm not 100% sure what's going on, but scanning through the debug.log this caught my eye: So, Bountiful is generating an error, and if you notice the subsequent errors about token recognition errors, the tokens it is complaining about spell out "SpawnerNBT". Unfortunately I can't tell where it's coming from/what is causing it. Thing still seem to keep going after this though. Then: So, I would remove the Bountiful mod, as it appears it is using Kotlin, which I am not familiar with at all. I believe it's another language that runs in the Java JVM maybe? But it looks like you not having a Kotlin language provider for the JVM is what is making it crash. *edit: Sorry, just realized you noticed the Kotlin thing, I was distracted by your completely unrelated screenshot. A quick google search: https://kotlinlang.org/docs/reference/faq.html

If I were going to dev for unsupported versions, I would probably just use google/forum search. Support requests here (not sure if that includes "is there an archive for xxx outdated version?") for old versions get locked by moderators.

Please post logs and updated code. Code is best shared using a github repo, so even if you forget to share a piece, someone can still look at it.

Really old versions are no longer supported. Please update to a modern (1.14.4/1.15.2) version to receive support. More information on supported versions can be found in the LTS link at the top of every page.

What if you remove the .get() from the ModBlocks.WAND_INFUSER in the builder create call? Looking at an example elsewhere that shows it using the actual supplier and not the Block.

I think everything except registration events/deferredregisters, and I think the setup events, are on the forge bus.

1.12 is no longer supported due to age. Please update to a modern (1.14.4/1.15.2) version to receive support. More information on supported versions can be found in in the LTS link at the top of every page

More information is needed, there should be a logs folder in the run folder in your project, post the debug.log from in there. If it will fit here, use spoiler tags, otherwise you may have to post it on an external site and post the link here.

1.12 is no longer supported due to age. Please update to a modern (1.14.4/1.15.2) version to receive support. More information on supported versions can be found in in the LTS link at the top of every page

1.12 is no longer supported due to age. Please update to a modern (1.14.4/1.15.2) version to receive support. More information on supported versions can be found in in the LTS link at the top of every page

1.12 is no longer supported due to age. Please update to a modern (1.14.4/1.15.2) version to receive support. More information on supported versions can be found in in the LTS link at the top of every page

1.12 is no longer supported due to age. Please update to a modern (1.14.4/1.15.2) version to receive support. More information on supported versions can be found in the LTS link at the top of every page.

Old versions that use setupDecompWorkspace are no longer supported. Please update to a modern (1.14.4/1.15.2) version to receive support. More information on supported versions can be found in the LTS link at the top of every page.

Post the debug.log as described in the EAQ, it will be in the logs folder in your minecraft game folder.

- Please keep posts in English, this is an English forum. 1.12 is no longer supported due to age. Please update to a modern (1.14.4/1.15.2) version to receive support. More information on supported versions can be found in the LTS link at the top of every page.

You're registering the class on the mod event bus, but those are forge event bus events.

You need to register TILE_ENTITIES on the mod event bus, as far as I've seen all deferred registers are usually registered on the mod event bus in the mod constructor.

Can't run client mods on a server, remove xray. I think diesieben mentioned that a few posts up while asking for the debug,log.

1.12 is no longer supported due to age. Please update to a modern (1.14.4/1.15.2) version to receive support. More information on supported versions can be found in the LTS link at the top of every page.

The filenames of many of your mods suggest you downloaded them from a Bad Website (such as 9 minecraft or something). Mods hosted on these sites are often doing so without permission, and may have outdated or modified/tampered with versions. You should only download mods from curseforge.com or directly from the mod authors website. See https://stopmodreposts.org/ for more information and a list of bad websites to definitely not download mods from. I would delete all of your mods, and redownload them from curseforge.

That looks like the crashlog, not the debug.log

The thing about Optifine is it is very finicky about what versions of forge it works with. If you look in the changelog for each Optifine version, it will tell you which version of forge it is compatible with. From my experience (watching, not using), if the versions don't match exactly, you could run into issues. The problem then is if you use an older build of forge to use Optifine, some of the other mods may be designed/built with a newer build, and won't work. So you have to pick and choose and decide what you can/can't live with.

Does it work if you remove Optifine?

I was messing with loot recently using global loot modifiers, and it worked pretty sweet. Looks very similar in setup to what you're doing here, just different way of registering I guess. Here's the link: https://github.com/MinecraftForge/MinecraftForge/blob/1.15.x/src/test/java/net/minecraftforge/debug/gameplay/loot/GlobalLootModifiersTest.java And here's a link to the thread I had started while trying to figure it out, hope it helps! https://www.minecraftforge.net/forum/topic/83671-1152-manipulate-actual-block-drops-not-what-can-drop/

Please post the debug.log from the logs folder. It is possibly quite large, so you may have to host it on a paste site or a github gist or something and link back to it here. If you can post it here, please put it in spoiler tags