DaemonUmbra

Declaring a dependency doesn't pack it into your mod

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

Why is your game searching the launcher's installation instead of .minecraft?

You don't. The typical "closure" is to edit the original post and add "[SOLVED]" or something to it.

Are you not getting an error screen that explains this better? There's supposed to be one. Nevermind, that only works when mods properly list their dependencies, which DarkUtilities is not doing.

I love the irony here where you piped up solely to rip into me and not at all to help. Take your own advice why don't you?

When I try that page it redirects me to the US page: https://www.minecraft.net/en-us/download

Did you ever use Terminal on Mac?

Is there anything special about any of the folders in this path? C:\MultiMC\instances\1.16.2-home\.minecraft\config\forge-client.toml Any symlinks or anything like that?

Try opening Powershell as admin and typing Stop-Process -n java* and try installing again.

The log you provided gave no indication that the game even started to load, how about you try updating your launcher and trying again

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

What are you talking about "Legacy Edition"? Rails of War is a 1.12.2 mod, it won't work on 1.16.3.

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

Forge is for Java Edition and only Java Edition.

Please provide a screenshot of your launcher

Are you sure you have the same mods and configs as everyone else?

Yes, this is the server's debug.log. Unfortunately it seems the disconnect is likely caused by your client, please provide the client's debug.log.

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

No that is latest.log, which should be right next to debug.log Neither of these are complete, please stop giving snippets

No it's not. Provide the whole debug.log

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

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

Uninstall every version of Java you have, then install Java 8 HotSpot

Installer rather than launcher, yes. But you are supposed to be getting Jar files, if you have Java installed and set up correctly double clicking those files will tell Java to run them.