DaemonUmbra

You run gradlew --stop to stop all daemons, however this was a while ago and I've learned since then that there's a LOT of issues that could cause this error, and more info should be above it

For modern versions SDW no longer exists, you just import the build.gradle as a project and intellij does the work that SDW used to do during the import.

Forge doesn't support Technic launcher, you're on your own

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

Are you using the Twitch client?

Are you using the Twitch client?

I seem to recall something about NVidia cards having a compute mode, if so, that's not enabled, is it?

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

Please don't necro old threads. Additionally, 1.12.2 is no longer supported on this forum.

Please don't hijack other peoples threads, if you have an issue please make your own thread

Yes, however I'm not going to help you fix a server that's out of support

Saying it "dont work" is the equivalent of telling the Doctor "It hurts". In addition, 1.12.2 isn't supported here anymore.

The intended use is to run Forge's installer manually and then start the server with a command or a script. I know this might sound like the same procedure you're already doing, but the scripts you have now have a couple extra bells and whistles that try to automate things for you and might actually make it worse when things go wrong.

It's sounding like you grabbed a couple scripts out of a modpack's server zip and are using them globally as server management scripts. which is not recommended.

Please keep this forum in English. What I'm getting here is that the installer is telling you to run the launcher once before installing Forge, and this confuses you. Is this accurate?

Do you have a flakey network connection?

You don't run BorderlessGaming, do you?

It's not on Forge to be compatible with a closed source mod. It's on the closed source mod to be compatible with open source Forge... their changelog states which Forge version that particular version is c

RLCraft is a 1.12.2 modpack, so no.

You don't have a bootleg graphics card, do you?

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. Please update to a modern version of Minecraft to receive support.

This server log doesn't match up with the client log timestamp-wise, and neither mention the error screen you're getting. Please reproduce the issue and provide logs that match up

For some reason Silent's mods are sending packets before Forge's initial handshake, what happens if you remove silent's mods?

Can you provide the server's debug.log as well please?