DaemonUmbra

This typically indicates that you have a 32-Bit Java installation, which can't make use of more than 4G of RAM. You'll want to uninstall the Java you have and install a 64-Bit version, we recommend AdoptOpenJDK around here.

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

Delete C:\Users\17049\AppData\Roaming\.minecraft\config\fml.toml and try again

When you tried to run your mod outside of development did you also remember to add the mod you're using into the mod folder?

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

We don't do anything with shaders and we tend to recommend not using Optifine

You're trying to update TO or FROM 1.12?

Known issue, we can't fix it because the issue is between GLFW and Apple. Either Apple needs to add backwards-compatibility with the older API they dropped from the M1's or GLFW, LWJGL, and Mojang need to update.

I'm pretty sure you don't need any Minecraft code to do this. Are you sure that's /assets/skyblock/rooms/ and not /assets.skyblock.rooms/? You know the code you're currently using will crash on a server, right?

We don't provide support for MCreator. We expect you to learn Java before modding, not by modding.

What does your mod do?

This error comes from either trying to use a 1.15 or earlier mod in 1.16, or from an incompetent dev omitting necessary info from the mod.

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

No

Looks to be a Minecolonies issue, see if updated versions are available

Are you a player or a mod dev?

You should never extract a mod or Forge

It went away when we upgrade the forum software... [spoiler]It's still available as a BBCode tag, though[/spoiler] I honestly miss the teletype button more, the equivalent BBCode for that is a bit more annoying: It takes two tags, both of which require parameters that I had to search old posts to find [font=monospace][background=rgba(100,100,100,0.1)]It takes two tags, both of which require parameters that I had to search old posts to find[/background][/font]

I don't know the difference, I've only looked into it enough to see the error is coming out of GLFW itself when it tries to use an API that is evidently missing in M1 macs according to a support thread I found.

What version are you trying to use? Do you know Java?

This is a known issue that we're unable to fix. It's up to Apple to add backwards compatibility to the APIs they changed with the M1 Macs, or up to GLFW, LWJGL, and Mojang to update their respective products or shipped libraries.

Known issue, not one we can fix. It's something Apple or GLFW, LWJGL, and Mojang need to fix.

Why would you need a VM? That would just add extra overhead. You can just install and run the server.

What do you mean by "LAN 'server'"? Do you mean a dedi on your local network or do you have a client running with LAN open?

Is this a modpack or mods you put together?