MCreator says "One or more of your main files did not compile properly" when starting client. (FIXED)

Hello.

When I try to start up my client to test my mod, it just says "One or more of your main files did not compile properly". I clicked regenerate code but that just made it appear once it regenerated. I tried the build option using the build and run tool but that makes the message appear again. 

I also followed the steps in the gradle setup and build errors page but it also wont work.

I think this is because I recently made a geckolib model and animation so I deleted that, but that still won't work.

If you have any solutions or a way to prevent this from happening, please reply.

Thank you.

Nevermind, I fixed this issue by deleting all of the living entities and rebuilding the entity elements from the ground up.

Sorry for wasting your time.