Found the problem, and a workaround. The problem is that folder is not being created at install and it needs to be, or the application is failing to understand how to make it.
The workaround( and reason some people work without effort) I discovered by accident this morning. Installing the original 1.0 client creates the needed folder structure, which the 2.0 client happily uses.(I had used only Python prior, so I never had installed the 1.0 client)