Ugdhar

Not completely sure what you are asking, but I would suggest posting the debug.log as described in the EAQ, it will have details on what is going on. Can you be more descriptive what you are trying to achieve? Also, this is the Modder Support section of the forums, for people creating mods. If you are trying to run mods, you want to post in the Support & Bug Reports section.

You're not showing where the handler is registered, you're just showing the subscribed event. Go back and read the doc page about registering the event handler again.

Use Java 8, higher versions are not supported at this time.

All of the answers are here, if you are still having a problem, it may be something else. I would should start a new thread, and post your code, and probably also debug.log.

You should post your code as a github repository so people can see the big picture, and link to it here. Logs may or may not also be useful. Unfortunately any suggestions would be random guesses without more information. As a general rule, always post your code at the very least

Please post your debug.log, it should give some information about what is breaking it

That looks like a mod. Make sure to check optifine's changelog for compatability with forge.

Please post the full debug.log, it will have more details on the error and what is causing it.

You have 1.15, 1.15.2 is the latest.

Bumping after only 6 hours is a little soon, it's kinda rude, just saying

Does it say 1.15.2, or 1.5.2? A lot of people have been confusing the 2 lately I notice. . . .read CAREFULLY. Post a screenshot too please

If you click the Files link at the top of the page, the latest version is literally right there in front of you.

Did you try searching the forums at all? Search for "FillerBlockType" and the second one that comes up is https://www.minecraftforge.net/forum/topic/84537-solved-1152-custom-fillerblocktype-for-ore-generation/?do=findComment&comment=398530 and it's marked Solved, so there's likely some good information in there. Also, if you're trying something and it throws an exception, you should show code (all code, not just a line, there are things that could be related that you do not realize, a github repo is the best way to share), and post the debug.log that shows the actual error.

Have you tried setting breakpoints? Just curious where in the code you make it to, and what is not doing as expected.

It looks like you might be running out of memory, despite having a 64 bit Java. Can you post you full debug.log as described in the EAQ? It might have more information.

If you remove optifine, does it work? The optifine changelog will tell you what versions, if any, of forge it is compatible with.

Awesome, thank you! I also had to change that Y 90 to a 0, and there was another place I had 90 (not sure why, I think it was copied from the igloo?) for Y instead of 0, but now my stuff spawns pretty much as i expected! Do you happen to know much about structures, for instance what ScatteredStructure is vs Structure, or how the Placement configuration works? I've tinkered with it some but honestly have no clue what I'm doing, just tinkering, guessing, and stabbing in the dark lol. I'll leave the repository there, remove some of the stuff I was testing, and hopefully if someone else has issues they'll get some help from it.

Thanks for taking the time to reply! I overrode func_225558_a_ in my structure, and also expanded it out a bit for debugging purposes/setting breakpoints. It seems to fire off true for everything every time the chunk positions match, so unfortunately I don't think this is my problem. I know it's something I'm missing, I just don't know what!!! I've updated my github repo with these changes if you feel like checking it out. Thanks again!

Did you change your code to not run the event on the client? Is the event being fired? Did you set breakpoints? Please be more detailed, I can't see your entire project, so it's impossible to see the big picture.

You don't show where you register your enchantment or anything. You should share your code as a github repo, it's really hard to read pasted into a post like that.

Is your models.armor package in textures models/armor on the filesystem, or actually named models.armor? I've seen that happen before where it ends up actually being named "models.armor", and that won't work

Just tried what? And what didn't work? Did you set a breakpoint to see if you reach the event?

Please post the debug.log as described in the EAQ, it will give more details on what's happening.

I don't think you can handle stuff like blocks breaking on the client, probably only on the server.

Make sure you delete any mods you downloaded from there, and redownload from a good site such as curseforge.com. The link diesieben07 shared will give you a list of ones to avoid, I think they even have a browser extension that will warn you if you accidentally go to one. You never know what could be hidden in those .jar files downloaded from sketchy places!!!!