Ugdhar

It should be assets not asserts

Make a new topic, and post your own logs, your problem might not be the same even if you think it is.

Try removing Architectury

If you do not know some basic Java, you will want to do that first, or you will have a terrible time trying to make mods. Just sayin'. If you already do, or once you have, McJty has good tutorials to get your feet wet in the MC/Forge stuff: https://wiki.mcjty.eu/modding/index.php?title=YouTube-Tutorials

I myself cannot tell by the error which mod is causing the crash. You may have to add/remove mods little by little to narrow down the misbehaving one. I personally would start with this one: Since the author didn't even change the mod name or mod ID to something besides "examplemod". Anything that modifies the menus/world creation options and stuff could be the culprit as well, as it appears as though the error is being thrown from gui objects. Try removing those and seeing if it helps. Make sure if you post back here to post new logs! Good luck!

I believe the mappings take care of method and field names, but not parameter names. I thought I saw somewhere there was a project going on working to give them names, but I haven't got and more info on that.

But, did you install what wawla needs? Read the error again. Also, if it doesn't work, post new logs please

The answer is right there in the crash report

No prob, hope it helps, and I did find dimension files in twilight forest, they just ended up being in the generated folder, which I hadn't thought to check. Feel free to post back with any tips/info you find, in case others search the forums for this same/similar issue.

Yeah, but I'm willing to wager it is unfinished, considering there aren't any dimension jsons in there. *edit: Found them in the generated folder, so there are some there, my mistake. They're just not in the "right" place I would have expected.* (https://github.com/TeamTwilight/twilightforest/tree/1.16.x/src/generated/resources/data/twilightforest) Poking around, I see this mod that appears to have stuff done in the new way, but I haven't had a chance to dig into it yet: https://github.com/quek04/The-Undergarden/tree/1.16/src/main/resources/data/undergarden

This is because Twilight Forest, at least as far as curseforge is concerned, is not available for 1.16, so I'm guessing that whatever source you were looking at was either for an old version, or incomplete/in-progress. Sorry I don't have more help for you, I haven't messed with 1.16 that much, just started looking into it and tinkering with it. If I figure any dimension stuff out, or come across any decent references, I'll post back here for ya.

I think you mean subclass.

What have you tried? What is working/not working? I also know there are examples of this very thing if you search these forums, give it a go, you'll likely find your answer. And if it still doesn't work, post code, logs, and be verbose describing what is working/not working.

There does not appear to be a spoiler tag button in the forums editor anymore (it used to be a little eyeball button). Can this be put back? And at the very least, if not, how do you make one by hand? I don't get fancy with forum markup syntax, so I've got no clue.

Interesting, it used to be a little eyeball button at the top of where you edit a message, but it doesn't appear to be in the editor anymore. I guess you could try the quote or code tags, but I don't know if they collapse the same way spoiler does. Unfortunately I don't know how to add one inline by hand. Sounds like a good bug report for whoever works on the forums!

Before doing that, try as diesieben suggested and remove optifine, I didn't realize that was in there (one of the side effects of pasting your log directly into the post, too much scrolling down the page to catch everything).

I would try removing abnormals_core and see if that helps. Also, you should post logs on an external paste site, and link to them here, or at the very least use spoiler tags, to avoid a 10 mile long post.

What is causing that? Also, it's tough without being able to see the big picture, you really should put your project in a github repo and share the link here. A space, a comma that looks like a semicolon, a missing modid somewhere, all little things easilly missed, but potentially caught by a rubber duck debugging a github repo

That log doesn't look complete, post the entire debug.log file, it should have more information. *edit: also Is that the correct version for the version of Minecraft/Forge you're using?

Did you actually execute jarfix, or just download it? It must be executed in order to apply the fix. And are you sure you have java? If you open a command window, and type java -version does it say something? Also, instead of posting on a thread over a year old, you should create a new thread, your issue could be different even though it looks the same.

Nice job necroing a thread that's over 4 years old to complain lol

Even without a crash, there will still be a debug.log in the logs folder, post that to an external site (github gist, pastebin, etc) and post the link here so someone can check it out.

Don't copy it from the console, look in the logs folder in your project, there will be a debug.log in there that contains the information. Post it to an external site, like a github gist or something, and link back to it here, as it can be quite large/long.

You want to use the energy capability: https://mcforge.readthedocs.io/en/latest/datastorage/capabilities/ I haven't looked at capabilities in a while, so I'm not sure if the docs are up to date or not, but it should be enough to get you started!