No connection string named 'MyApplicationEntities' could be found in the application config file

Question

I just install EF 4.3 and trying to upgrade my project with migration. however I am getting issues with trying to execute add-migration initial to my project vi

Answer 1

 1. ctor => Context

   public MasterEntities()
    : base("ConnectionStringName")
{
}

 2. config file

   

 3. in Sulation Exporer right click the project and select 'Set as
    startup project'

 4. in PackageManagerConsole Change Default Project to Your Project of
    context class.

 5. then:

add-migration new

or added ConnectionString to config file of working Project.