DaemonUmbra

Please provide the full gradle log

I've split your responses into a new thread. Please don't hijack other people's threads.

I've split your responses into a new thread. Please don't hijack other people's threads.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

1.8 is no longer supported on this forum. You have already been informed of this several times. Warning points and account restrictions have been logged and assigned.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Try bypassing Twitch using the steps in this video: https://www.youtube.com/watch?v=kIUEK14_0s8

Please don't Necro old threads, if you have an issue make your own.

Step 1. Learn Java Step 2. Stop using MCreator and make your mod properly

The Docs are open source on GitHub like everything else Forge-related. This conversation has been had many times with many people and it usually boils down to the devs preferring to continue working on Forge itself rather than writing pretty docs. Given that we're dealing with undocumented, decompiled Minecraft code anyway folks are expected to have at least some ability to understand how code works by reading it.

Is Optifine included in the pack?

Try running JarFix

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Thread cleaned. Please do as Danebi asked (more info on it in the "Logs" section of my forum signature below).

I see the issue now. This is an issue with how Twitch does things, they rehost everything they need, including Forge stuff, and it appears at least part of their process is manual and hasn't been done yet, so they're not pulling Forge's 1.16.2 stuff right now.

Please read the Logs section of my signature below and provide the appropriate log in the appropriate manner.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Please provide the debug.log as described in the "Logs" section of my signature below

You have 32 bit Java, uninstall it and install 64 bit Java 8 HotSpot. I recommend getting Java from AdoptOpenJDK

1.7 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

There aren't any 1.15.2 named mapping files, just use 1.15.1

Running the command doesn't refresh the project in your IDE

This is not helpful at all, please provide debug.log as described in the "Logs" section of my signature below