So, I recently created data generators for all of my resources (with the exception of particles, which I am not registering or doing anything with right now). When I start up the game, I get the warning in the post title. Sure enough, when I load into the game my mod is missing all resources. I am certain that all of my resources are located in the right spot, and  I've spent a while playing around with my build.gradle to see if there was any issue with that. I'd appreciate any help I can get with this.

Here's a debug log of when I start the game: https://pastebin.com/8JggpiqY
And here's my repo (in its broken state): https://github.com/eddie1101/Voidcraft/tree/broken

Bump.
I've put some work into this in my free time but haven't made any headway. My mind is boggled, and I'm hoping that the issue is just a simple mistake that I'm overlooking, but I've checked everything I can think of.

Yep, that did it. I have no idea where it went or why it's gone, but I copied it from an old commit and re-added it. Now everything works properly. Thanks a bunch.