Cache 2016.2.1.603 for windows)
I created a few classes and one class called jitPod.Api.toServer.additionalConsignments and realised even before I did any work,, that the word "Api" (note capital A) needed to be "api" (all lowercase)
it would not allow copying the class to the lowercase name because the directory already exists (i understand that)
so I exported the class to an XML, edited the xml to become lowercase "api" , deleted all the classes (and directory name) and re-imported the class.