EF6 "No migrations have been applied to the target database."

In an mvc5 application, I created a CodeFirst data model, and performed several migrations on it. I then refactored my project, and moved all the data/migrations classes to a new project, which is referenced by my presentation tier. The dbcontext successfully connects and performs read/write operations on the DB after the project change. When I made a minor change to the model and ran `add-migration`, the EF created a migration with the code to create the database from the beginning, like it didn't "see" the existing tables. Of course, when i ran ``` Get-Migrations -ConfigurationTypeName ConfigurationDbContext ``` i got ``` No migrations have been applied to the target database. ``` The `__MigrationHistory` in the DB is intact and the migrations/configuration classes namespaces didn't change. Also, apparently, the ConnectionString is OK, otherwise he would have trouble working with the db and i would get the "The model backing the context has changed since the database was created" or similar error. EDIT: As suggested in the comment, I specify the exact connection string in the DbContext constructor, and not the connectionstirng name in web.config, as it was in the original mvc project. Still no history/changes in the db when running Get-Migrations and update-databse. when I run `Get-Migrations -ConfigurationTypeName My_Namespace.Migrations.ConfigurationDbContext.ConfigurationDbContext` I get ``` No migrations have been applied to the target database. ``` If I try to specify the connection string ``` Get-Migrations -ConfigurationTypeName My_Namespace.Migrations.ConfigurationDbContext.ConfigurationDbContext -ConnectionString "Server=my_server;Initial Catalog=my_catalog;User Id=my_user;Password=my_pass" -ConnectionProviderName="System.Data.SqlClient" -verbose -debug ``` the PM gets stuck on `>>` sign, until I restart or clear the window... if I omit the `ConnectionProviderName="System.Data.SqlClient"`, the console asks me to enter it, and after I enter, it shows connection to the correct db, ``` Target database is: 'my_catalog (DataSource: my_server Provider: System.Data.SqlClient, Origin: Explicit) ``` but still no migrations... ``` No migrations have been applied to the target database. ``` Why can it be and what can be done to further investigate/resolve this issue? EDIT 2: the constructor of my dbcontext is simple: ``` public class ApplicationDbContext : IdentityDbContext<ApplicationUser> { public ApplicationDbContext() : base( "Server=my_server_name;Initial Catalog=my_db_name;UserId=my_username;Password=my_password" ) {} public DbSet<Model1> Model1Entities { get; set; } public DbSet<Model2> Model2Entities { get; set; } public DbSet<Model3> Model3Entities { get; set; } } ``` it is based on IdentityDbContext as in the template mvc5 applicaiton, because I didn't want to create a different dbcontext for it. and the ConfigurationDbContext is automatic ``` internal sealed class ConfigurationDbContext : DbMigrationsConfiguration<ApplicationDbContext> { public ConfigurationDbContext() { AutomaticMigrationsEnabled = false; } protected override void Seed(ApplicationDbContext context) { } } ``` Thanks!