installing entity framework code first packege in vs2012

See more:

C#

MVC

I created an ASP.NET MVC 3 web application and installed mvcscaffolding by this way:

"Install-Package MvcScaffolding".

Then i created a model named Team like:

public class Team
   {
       public int TeamId { get; set; }
       [Required]
       public string Name { get; set; }
       public string City { get; set; }
       public DateTime Founded { get; set; }
   }

I Scaffolded then it by this way: "Scaffold Controller Team" on Package Manager Console menu.

that was also successfully worked. but I can run the project successfully it shows "page not found"
I also tried to install entity framework by this way "Install-Package EFCodeFirst.SqlServerCompact"

it failed. but why?
I am beginner. So please put your answer details.

Thanks in advance