Entity Framework: Add-Migration fails with Unable to update database

Question

I have been using Entity Framework (5.0) for a while now in a project (ASP.NET MVC in VS2012 Express). Right now, though, I am no longer able to add migrations.

Answer 1

In my case I've got the same error because I was forcing ObjectContext.CommandTimeout on class DbContext at constructor method during migration.

Try removing it

((IObjectContextAdapter)this).ObjectContext.CommandTimeout = 5000;