Ugdhar

Please post new logs, and post the debug.log, not the crashlog.

Please post a log from your troubles with 1.15.2, since the other versions you mentioned are no longer supported. Also if you're getting to the early loading screen, it would appear you've made it past using the installer, so this would be a different issue. I myself have had no issues running any of the jar installers, and most of the issues I see regarding them are people with hijacked jar file associations, or missing/wrong version of Java.

It looks like you have an invalid configuration somewhere. You can either try to fix it, or delete your config folder if you haven't made any changes to it. Or rename it if you don't like deleting things. It should be recreated on next launch.

Please post the debug.log from the logs folder in your game folder. This should give enough information to start figuring out what is going wrong.

https://wiki.mcjty.eu/modding/index.php?title=Tut14_Ep10

It looks like you may have a broken config file. If you haven't modified them, you can try deleting the config folder and they should rebuild on the next run. If deleting makes you nervous, rename it to config.old or something in case you need it.

Use Java 8, or update to the latest Forge.

Make sure you launched vanilla minecraft for the version of forge you're downloading at least once, just in case you haven't. I would say post the new installer log from using the new java if it's still not working then.

What IDE are you using? With Eclipse it is listed under Referenced Libraries, it's the forge jar that's not the launcher. (first one in my list) Not sure with IntelliJ or other IDEs.

If this is the case:

https://gist.github.com/williewillus/353c872bcf1a6ace9921189f6100d09a Links to https://gist.github.com/Barteks2x/41122efc766afdd47aeb457a3c19b275 (worldgen stuff)

You should not be creating your blocks and items with static initializers. You should user DeferredRegister. The class is documented in the sources and here: https://mcforge.readthedocs.io/en/latest/concepts/registries/ As a side note, you should create a github repository for your project, then share the link here when you need help. It makes it easier for people to help you when they can see all your code, it gives the big picture.

Look at one of the vanilla biomes, they use the surface builder in the call to the super constructor. I found it by looking in the SurfaceBuilder class at the vanilla ones (MOUNTAIN, SWAMP, etc), then in my IDE I used "Open call heirarchy" on a couple of those, and it showed me where they were used. Hope this helps ya in the future

Please post the debug.log from the run\logs folder in your project. It should have much more information than the console 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.

Now you need to find the folder the forge installer is in, and go to it with the command prompt/powershell. To do this: open the folder, then right-click while holding shift in a blank spot (not on a file or folder within that folder). From this menu there should be open command prompt(or powershell) here. You will need to specify the full path to your installed java. So if you extracted the openjdk zip into C:\Users\Bob and did not change any of the folder names, you would need to type in C:\Users\Bob\jdk8u252-b09-jre\bin\java.exe -jar forge_installer-press-tab-to-complete (after typing forge, hitting tab should complete the filename for you, you can use tab completion when typing in the path to java as well.) That should theoretically get you going.

It should be in the logs folder of your minecraft game folder, which in Windows is %APPDATA%\.minecraft

If you downloaded the .ZIP file as advised, you can extract it anywhere you wish, windows should be able to do it without extra software. You should be able to extract it into your user directory, usually C:\Users\YOURUSERNAME even without admin permissions.

Which file? openjdk, or the forge installer?

You should share your project as a github repo, so people can see what you have so far, and give you pointers on how to proceed.

Please do not post logs and code as screenshots. They are very hard to read, and do not show the big picture. Please post your log as txt preferrably on a paste site such as github, and post the link here.

The search function of the forums is awesome https://www.minecraftforge.net/forum/topic/81917-1152-how-to-use-potions-in-crafting-recipes/

Instead of adding the spawns in your biome constructor, add them in FMLCommonSetupEvent, then everything is registered. Not 100% sure on the current method of adding spawn eggs though

Where did you download your mods from? Some of the filenames suggest you got mods from 9 minecraft, or some other crappy repost site, that hosts mods illegally, and often have outdated and even tampered with mods. You should only download forge from https://files.minecraftforge.net and only download mods from curseforge. I would delete any mods you downloaded from anywhere else, and redownload them from curseforge, and try again. If it crashes again, post the new log (debug.log has more information) See https://stopmodreposts.org/index.html for more information on which sites to avoid.

Try deleting the config folder, looks like something in there is invalid, and if you haven't customized anything you can just delete it and it'll remake it.