How to solve 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.SqlServer.dll but was not handled in user code Exception

See more:

.NET

MVC

.NET4.5

My MVC Application

Where my Controller action method is

public class EmployeeController : Controller
    {

        public ActionResult Index(int Id)
        {
            Employee_Context Emp = new Employee_Context();

            Employee_Details Emp_Detail = Emp.Employee.Single(emp => emp.id == Id);
            return View(Emp_Detail);
    }
}

My Model

public class Employee_Context : DbContext
   {
       public DbSet<Employee_Details> Employee { get; set; }

   }

namespace MvC_Demo1.Models
{
     [Table("Ëmployee")]
    public class Employee_Details
    {
        public int id { get; set; }
        public string Name { get; set; }
        public string Designation { get; set; }
    }
}

My ViewModel

@model MvC_Demo1.Models.Employee_Details


@{
    ViewBag.Title = "Index";
}

<div style="font-style:italic">
    <h2>Employee Details</h2>
    <table>
        <tr>
            <td>Id</td>
            <td>@Model.id</td>
        </tr>
        <tr>
            <td>Name</td>
            <td>@Model.Name</td>

        </tr>
        <tr>
            <td>Designation</td>
            <td>@Model.Designation</td>

        </tr>

    </table>
</div>

am getting this Execption in Controller action method which I mentioned it below

Employee_Details Emp_Detail = Emp.Employee.Single(emp => emp.id == Id);


Please give a solution for this am new to MVC