I'm having an issue where a dependency is reported as not being a jar file, but it doesn't tell me which, and searching doesn't come up with anything. It also then says that it can't configure the Minecraft home for Forge Mod Loader.
https://pastebin.com/yewpRWWf
I'm fairly use to creating modpacks, but have been having this issue anytime I start making a relatively bigger pack, and even then, seems to be fairly inconsistent with which mod causes the issue.
I also use the Twitch launcher.