DAWs don't seem to be able to scan my VST

Hi folks, I’m very new to building VSTs.
I’ve created my first one and it seems to have built and validated successfully, but DAWs don’t seem to be able to scan it.
I’ve tried the VST Plugin Test Host, Reaper, Audition, and Ableton.

What are common issues that would stop DAWs from scanning a VST?

Edit: I created the base for the VST using the Plugin Generator tool and used Visual Studio 2022.