I\'m using this MSDN Tutorial to run in VS2015 the command PM> Add-Migration MyFirstMigration -context BloggingContext that ran yesterday successfully but to
PM> Add-Migration MyFirstMigration -context BloggingContext
In my case I added dependency via Nuget:
Microsoft.EntityFrameworkCore.Tools
And then run via Package Manager Console:
add-migration Initial -Context "ContextName" -StartupProject "EntryProject.Name" -Project "MigrationProject.Name"