One or more of your main mod files did not compile propperly

Okay, First of all, I know this seems like a duplicate post, but I have reviewed almost EVERY OTHER ONE OF THIS KIND and none of the awnsers work.

so, Here is the situation:

When I try to launch the dev test (minecraft) for testing the mod so far, It always says this.

IMPORTANT INFO:

I am using fabric generator (IT IS UPDATED)

I am using THE UPDATED VERSION of mcreator.

EVERYTHING IS UPDATED.

I have been able to launch the dev test before, but a few days ago it stopped working

I have checked and my code is all bug-free, and there are no unconnected blocks.

I have tried repairing, regenerating, and even deleating the .gradle and other folders and reinstalling them, and I have even deleted the few elements that could have EVEN A TRACE of a bug.

Also, everything is compileable (I could not figure out how to post a screenshot), at least acording to the table thingy in mcreator that says so.

PLEASE HELP :(.