title: EntityFramework add-Migration can not process success
body: <p>I have already install entityframework
  and then i run this</p>
  
  <pre><code>PM&gt; Enable-Migrations
  </code></pre>
  
  <p>it shows No context type was found in the assembly 'GLRISCRM.SMS.Dal.Test'.</p>
  
  <p>then i run this</p>
  
  <pre><code>Enable-Migrations -ContextTypeName "GLRISCRM.SMS.Dal.Test.GLRISCRM_SMS_Context" -ProjectName "GLRISCRM.SMS.Dal.Test" -StartUpProjectName "GLRISCRM.SMS.DbMigrations.Test" -ConnectionStringName "GLRISCRM_SMS_Context" -Verbose
  </code></pre>
  
  <p>it show </p>
  
  <blockquote>
    <p>Using StartUp project 'GLRISCRM.SMS.DbMigrations.Test'.
    System.Data.Entity.Migrations.Infrastructure.MigrationsException:
    Migrations have already been enabled in project
    'GLRISCRM.SMS.Dal.Test'. To overwrite the existing migrations
    configuration, use the -Force parameter.    at
    System.Data.Entity.Migrations.EnableMigrationsCommand.&lt;>c_<em>DisplayClass2.&lt;.ctor>b</em>_0()
    at
    System.Data.Entity.Migrations.MigrationsDomainCommand.Execute(Action
    command) Migrations have already been enabled in project
    'GLRISCRM.SMS.Dal.Test'. To overwrite the existing migrations
    configuration, use the -Force parameter.</p>
  </blockquote>
  
  <p>then i run this </p>
  
  <pre><code>add-Migration
  </code></pre>
  
  <p>cmdlet Add-Migration at command pipeline position 1
  Supply values for the following parameters:
  Name: update1</p>
  
  <p>it show </p>
  
  <blockquote>
  <pre><code>No migrations configuration type was found in the assembly
  'GLRISCRM.SMS.Dal.Test'. (In Visual Studio you can use the
  Enable-Migrations command from Package Manager Console to add a
  migrations configuration).
  </code></pre>
  </blockquote>
  
  <p>how can i run success the add-Migration
  who can help me
  this is my Configuration</p>
  
  <p>></p>
  
  <pre><code>     namespace GLRISCRM.SMS.Dal.Test.Migrations
       {
           using System;
           using System.Data.Entity;
           using System.Data.Entity.Migrations;
           using System.Linq;
  
   internal sealed class Configuration : DbMigrationsConfiguration&lt;GLRISCRM.SMS.Dal.Test.GLRISCRM_SMS_Context&gt;
      {
          public Configuration()
          {
              AutomaticMigrationsEnabled = false;
          }
  
          protected override void Seed(GLRISCRM.SMS.Dal.Test.GLRISCRM_SMS_Context context)
          {
  
          }
      }
  }
  </code></pre>
  
  <p>I can not find any problem</p>