System.typeinitializationexception: 'the type initializer for 'system.data.entity.internal.appconfig' threw an exception.'

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ASP.NET-Core

Hi Team

I am having this issue and dont know how to fix it, I have configured my Web.Config file for connection to the Database, the schema is loaded on _AppStart folder on my project and has table fields. Now every time i invoke the register file, i get this exception on ApplicationUser class.

What I have tried:

<pre>using Microsoft.AspNet.Identity.EntityFramework;

namespace ContentManagementSystem.Models
{
    public class ApplicationUser:IdentityUser
    {
        public string Email { get; set; }
        public bool ConfirmedEmail { get; set; }

    }

    public class ApplicationDbContext: IdentityDbContext<ApplicationUser>
    {
        public ApplicationDbContext()
            : base("eNtsaOnlineRegistrationDB")
        {

        }
    }
}

<connectionStrings>
    <add name = "eNtsaOnlineRegistrationDB" connectionString = "Data Source=GcobaniM-L\SQLEXPRESS;AttachDbFilename=[DataDirectory]\eNtsaOnlineRegistrationDB.mdf;Initial Catalog=eNtsaOnlineRegistration;Integrated" Security="True" providerName="System.Data.SqlClient"/>
  </connectionStrings>