For posterity's sake putting a note in this ticket about your fix:
While I do not have MySQL installed on my current dev box, I have used it before, so I installed the Visual Studio extensions for working with it. That apparently made some changes to my machine.config file and added some references to MySQL providers in addition to the SQL Server entries. I opened up the machine.config file and commented out those references. That did not fix the install we were working on, but it did get it much further in the pocess. So I set up a new installation (love the Project Manager tool btw). That succeeded. I am now looking at the backend dashboard.
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