DaemonUmbra

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

If you're looking to mod with Forge you'd better get used to reading source code and looking at how Vanilla, Forge, and other Mods do things, documentation is notoriously sparse and is outdated almost as fast as it gets written.

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.

One of your mods is not doing WAILA integration correctly, I'd need debug.log to say anything more

Can you provide a zip of the world save and your hardware specs?

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

Try the most recent version of Forge

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

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

The file it's missing is not hosted in a repository, it is generated and Gradle is tricked into accepting it. The real error is further up in the log.

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

Ok... at this point remove every version of Java you have and check program files for any versions of Java that might not have uninstalled correctly, see anything?

I see that hack "OptiForge" in there, remove that as well

The filenames of one or more of your mods suggests you got them from a repost site. Please read up on the StopModReposts project for info on why this is a bad thing. Also, I would suggest removing Optifine.

Oh right you were double clicking the thing, not using java -jar... so this will be the full command to run in cmd in the same folder as the installer: java -jar <Forge Installer Name> 1> forge_installer.log 2>&1

I have 8u252 from that site and it writes the log just fine for me. If there's seriously no log then append this to the command: 1> forge_installer.log 2>&1

Please don't hijack other people's threads, or necro old ones. I've split your response into its own thread. It's looking like your Java installation is corrupted, uninstall and reinstall it. I recommend getting java from https://adoptopenjdk.net For full compatibility you should get the latest version of Java 8 HotSpot

It will have the same name as the installer but with .log on the end: Installer: forge-{version}-installer.jar Log: forge-{version}-installer.jar.log Note: If you have Windows Explorer set to hide file extensions(as is the default setting), they will look like this: Installer: forge-{version}-installer Log: forge-{version}-installer.jar

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

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.

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

If you open the log and try to access the URLs directly do they work?

I think this is an issue that many people have reported but the dev team have been completely unable to reproduce it