Intellij not outputting to ./target/classes

Hello. My Intellij IDEA IDE just stopped working. I have narrowed it down to the compiled files not outputting. In the project structure, the output dir is /mnt/dev/dev/Larry-and-Susan/target/classes. However, this dir does not populate with compiled files. When I try to run my project, it comes up with this error:

Error: Could not find or load main class ca.dev.game.Core

I have tried deleting the profile, but that did not work. My sources are in packages.