Classes in the First Run folder

I made a folder structure in my First Run/Classes folder, /com/myclasses/

within that folder I have my Pulse.as class.

so the final path is First Run/Classes/com/myclasses/Pulse.as

but when trying to import it, i get the following:

The class being compiled, ‘Pulse’, does not match the class that was imported

any ideas what that means?

i’m importing the class with
import com.myclasses.Pulse;