Hi @smatt989, whilst the errors you report are not familiar, I can at least advice you try firstly on Visual Studio 2015 as I also experienced some issues with Nuget running VS 2017. Try this out first and let us know how you get on.
I should add that running the Core SDK via Parallels is not something we officially support either.. is there a chance to test he same setup on a Windows Box to see if that is where the issue lies?
Certainly, the “has stopped working” errors are rather vague and consider the simplicity of the program being run, it seems likely the issue lies at a basic level of configuration or environment.
In any event, I will check around with some of the developers in case they have also came up against such problems and whether they have used Parallels successfully with VS2017.