I made a custom 1.12.2 jar with MCP which removes the combat cooldown and changes some other features. I wanted to also pair Forge with it to make a modpack out of it for me and some of my friends, but it gives an error.
I tried using -Dfml.ignoreInvalidMinecraftCertificates=true -Dfml.ignorePatchDiscrepancies=true in my java args.
Java 8 251
Is there a way I can keep both? Thanks