You might get this error while doing update-database -verbose via Package Manager Console:
No pending code-based migrations.
Applying automatic migration: 201310081433521_AutomaticMigration.
Automatic migration was not applied because it would result in data loss.
This error happens when your data model is not in synch with your database. There are two ways to fix this: The first approach is by adding/deleting the columns that you added/dropped manually to your table and then re-running update-database again. […]