DaemonUmbra

As you have already been told, 1.12 is no longer supported. Stop trying to dodge that fact.

Still won't work David, Mojang's generators cache their blocks. What are you changing about stone and grass?

Did you remove it from your mods folder when you added the fg.deobf to your build.gradle?

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

You don't run the universal anymore (since 1.13), run the file that just says "Forge" and the version. This is all assuming you downloaded and ran the installer. If you only downloaded the universal, delete it and use the installer instead.

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

This solution is a bit nuclear, but try deleting your libraries folder

Really old Minecraft versions are no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Try deleting this folder: C:\Users\Asus\AppData\Roaming\.minecraft\libraries\net\minecraftforge\installertools\1.1.4\ and trying again

Just to be clear you downloaded and ran the installer, right?

Does this happen if you remove Optifine?

https://bugs.mojang.com/browse/MC-32606

https://docs.gradle.org/4.9/userguide/declaring_dependencies.html

https://stackoverflow.com/questions/8194713/difference-between-java-javawv-and-javaws

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.

Are you trying to run a server or a client? Who told you to run javaws?

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

You only need the installer, try running the jar from the command line and tell us what it says

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

It looks like you didn't read the installation instructions for at least one of your mods

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

Did you try connecting anyway?

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

That video is broken