Add-Migration : Exception calling "AddFromFile" with "1" argument(s): "'basePath' cannot be an empty string ("")

I get an error when I to run add-migration with entitcore on any dotnetcore based project but the equivalent command works when targeting the full dotnetframework

Add-Migration : Exception calling "AddFromFile" with "1" argument(s): "'basePath' cannot be an empty string ("")

see a snapshot of my code. It's a dotnetcore console app. Thesame will work if created the project based on dotnetframewok 4.6.1