Error When Converting Project from Code-first to Database-First

Question

I have worked on a project with Code-first Approach and know I need to convert it to Database-first Approach, because I have some logic I have to executed it through Stored-Procedure.

So, I decided to Convert my Project from code-first to database-first

Anyhow, I have moved the identity tables to the new database.

I have got this Error,

The property 'Claims' on type 'AspNetUser' is not a navigation property. The Reference and Collection methods can only be used with navigation properties. Use the Property or ComplexProperty method.

and in the OnModelCreating I have added these lines

    modelBuilder.Entity<AspNetUser>().ToTable("AspNetUsers");
    modelBuilder.Entity<AspNetUserRole>().ToTable("AspNetUserRoles");
    modelBuilder.Entity<AspNetRole>().ToTable("AspNetRoles");
    modelBuilder.Entity<AspNetUserClaim>().ToTable("AspNetUserClaims");
    modelBuilder.Entity<AspNetUserLogin>().ToTable("AspNetUserLogins");

    modelBuilder.Entity<AspNetUser>().Property(r => r.Id).HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity);
    modelBuilder.Entity<AspNetRole>().Property(r => r.Id).HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity);
    modelBuilder.Entity<AspNetUserClaim>().Property(r => r.Id).HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity);

any Solution for that ?

Update (1)

When I change the connection string it gives me these errors

One or more validation errors were detected during model generation: AwesomeMvcDemo.Models.IdentityUserRole: : EntityType 'IdentityUserRole' has no key defined. Define the key for this EntityType. AwesomeMvcDemo.Models.IdentityUserLogin: : EntityType 'IdentityUserLogin' has no key defined. Define the key for this EntityType. IdentityUserRoles: EntityType: EntitySet 'IdentityUserRoles' is based on type 'IdentityUserRole' that has no keys defined. IdentityUserLogins: EntityType: EntitySet 'IdentityUserLogins' is based on type 'IdentityUserLogin' that has no keys defined.