DaemonUmbra

You tried to run a 1.17.1 mod on 1.16.5, this is not going to work

MinecraftForge and CurseForge are two separate entities.

Then post it to imgur and use the link they give you. I'm not helping you until you prove you own the game

I can't debug your repo properly due to errors you made in setting it up. You are missing your build.gradle, .gitignore, and gradle wrapper stuff. Do you have permission from the original author to remake their mod and post their deobfed decompiled code?

Connection reset is a network issue

Some zip managers like to take control of the .jar file extension away from Java. Make sure you have Java installed and try running Jarfix once, then try the installer again.

That's not the debug.log

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

Please provide a screenshot of your launcher

This system was not brought across the 1.12 -> 1.13 gap because Mojang implemented "Game Directories" in their launcher, making this system redundant and inferior. TLDR:

Is there a reason to not use Curse's own Client?

People who run sites like that tend to run them out of less scrupulous countries where it's impossible or otherwise very expensive to get them taken down, and then they just pop back up again at a new address. Only download Forge from https://files.minecraftforge.net/

The initial release of Forge 1.17.X is currently broken and being worked on, no manual changes to anything should be required.

First you should look into the concept of Sides, as the code you have there will crash if you attempt to use it on a server.

try removing morecfm, whatever that is

Use the full path to the java 8 executable instead of just invoking "java"

Please provide debug.log (more info on where it is and how to provide it in my signature below, just expand the spoiler)

Use one of the sites listed in my signature please, preferably Gist

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.

1.12 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.

This is exactly what the gradle wrapper(gradlew) negates the need for... gradle wrapper, not eclipse... Please provide the command as you typed it and the response you got

Delete forge-client.toml from your config folder

[14Jul2021 18:25:10.007] [Netty Client IO #3/INFO] [net.minecraftforge.fml.client.ClientHooks/CLIENTHOOKS]: Client has mods that are missing on server: [little_critters]