2016.2 eap2 can't run netcore xunit tests Follow

attached screen shots shows

1. A file not found error (looking in the wrong place) 
2. Project.json file

FYI

1. MSTest runs fine
2. I tried setting the path to "..bin\Debug\netcoreapp1.0\Core.AddressBook.Tests.dll" but just get another error, which is probably because its not using the runner specified in the project.json? dunno

Any help would be appreciated