The type initializer for 'System.Data.Entity.Migrations.DbMigrationsConfiguration`1' threw an exception

I have ASP.Net MVC site.

Technology Stack

• ASP.Net 4.6
• C#.Net
• EF 6
• MySQL -Database

While I am trying to generate the database using Nuget command:-

Enable-Migrations -force

I am getting the below exception

The type initializer for 'System.Data.Entity.Migrations.DbMigrationsConfiguration`1' threw an exception.

Following things are already cross checked & tried by me:-

• The type initializer for 'System.Data.Entity.Internal.AppConfig' threw an exception on a Sub Website

• The type initializer for 'System.Data.Entity.Internal.AppConfig' threw an exception

• Code First can't enable migrations

My App.Config:-

 <connectionStrings>
<add name="mydbContext" providerName="MySql.Data.MySqlClient" connectionString="Server=localhost;port=8080;database=mydb;uid=root;password=" />
</connectionStrings>



<entityFramework>
<defaultConnectionFactory type="MySql.Data.Entity.MySqlConnectionFactory,   MySql.Data.Entity.EF6" />
<providers>
  <provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=6.8.8.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"></provider>
</providers>