Help needed!

[ZeroAsher]

We need help putting a new tutorial into our mod, but we’ve tried multiple times but we keep getting the message “[file_contents,assets/data/tutorial!/tutorial!-hard.json]”
I don’t know what these means and I really need help as soon as possible since I was going to show this to a few people tomorrow. Can someone put what I need into my mod for me? I would greatly appreciate it. Or at least tell me what I need to do.

[Leather128]

I think you may have named tutorial as tutorial! instead of tutorial it probably just doesn't show up in freeplay or anything because ! might just not show up in freeplay text.

TLDR: Check the _append/data/freeplaySonglist.txt and check Tutorial's name there as I think it's incorrect.