Entity Framework Automatic Migrations Existing Database

Question

I am building an ASP.Net MVC4 web application with Entity Framework 5. I had to use an existing sql server database but also wanted to use Code First, so I followed this tut

Answer 1

if your context is mine: added a new entity class worked on it but, when I tried to migrate it shows this error, try removing that object from db context then run update-database and add that object again and rerun update-database

for example:

public DbSet CustomizedEmail { get; set; }
public DbSet KeyWordsForEmail { get; set; }
public DbSet Notice { get; set; }//remove it>run update-database>
//add again the above entity and rerurn update-database

this works whether you have data or not. in this process you will loose data in that table.