No Entity Framework provider found for the ADO.NET provider with invariant name 'JetEntityFrameworkProvider'

[it19862]

Error. No Entity Framework provider found for the ADO.NET provider with invariant name 'JetEntityFrameworkProvider'. Make sure the provider is registered in the 'entityFramework' section of the application config file. See http://go.microsoft.com/fwlink/?LinkId=260882 for more information. "

Question: How do I resolve the error?

Used by

• Windows - 7x64;
• Microsoft Visual Studio Community 2019 - Version 16.6.3;

Description. I am trying to connect to MS Access database - db_test_01.accdb. I have created a console application. I am using the instruction: https://www.youtube.com/watch?v=mI0un8jjqL8

I get an error: see the "Error" section above.

Picture

Code App.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
    </startup>
    <connectionStrings>
        <add name="DefaultConnection"
             connectionString="Provider=Microsoft.ACE.OleDB.12.0;Data source=c:\test\csharp\vs\db\db_test_01.accdb"
             providerName="JetEntityFrameworkProvider"/>
    </connectionStrings>
</configuration>

Person.cs

using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;

namespace ConsoleApp
{
    class Person
    {
        public Person()
        {
            OwnerCars = new List<Car>();
        }

        public int Id { get; set; }

        [MaxLength(10)]
        public string Name{ get; set; }

        public virtual ICollection<Car> OwnerCars { get; set; }
    }    

}

Car.cs

using System.ComponentModel.DataAnnotations;

namespace ConsoleApp
{   
    class Car
    {        
        public int Id { get; set; }

        [MaxLength(10)]
        public string Name { get; set; }

        public virtual Person Owner { get; set; }
    }

}

Context.cs

using System.Data.Entity;

namespace ConsoleApp
{
    class Context : DbContext
    {

        public Context() : base("DefaultConnection")
        {

        }

        public DbSet<Car> Cars{ get; set; }
        public DbSet<Person> People { get; set; }

        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            // base.OnModelCreating(modelBuilder);
            modelBuilder.Entity<Person>()
                .HasMany(_ => _.OwnerCars)
                .WithOptional(_ => _.Owner);
        }

    }
}

Program.cs

namespace ConsoleApp
{
    class Program
    {
        static void Main(string[] args)
        {
            JetEntityFrameworkProvider.JetConnection.ShowSqlStatements = true;
            using (var context = new Context())
            {
                context.Cars.Count();
            }
            Console.ReadLine();
        }
    }
}

[bubibubi]

This is a section of an App.Config. Could you check if your is similar?

</configuration>
  <entityFramework>
    <providers>
      <provider invariantName="JetEntityFrameworkProvider" type="JetEntityFrameworkProvider.JetProviderServices, JetEntityFrameworkProvider" />
      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
    </providers>
  </entityFramework>
  <system.data>
    <DbProviderFactories>
      <remove invariant="JetEntityFrameworkProvider" />
      <add invariant="JetEntityFrameworkProvider" name="Jet Entity Framework Provider" description="Jet Entity Framework Provider" type="JetEntityFrameworkProvider.JetProviderFactory, JetEntityFrameworkProvider" />
    </DbProviderFactories>
  </system.data>
</configuration>

[it19862]

@bubibubi

This is a section of an App.Config. Could you check if your is similar?

</configuration>
  <entityFramework>
    <providers>
      <provider invariantName="JetEntityFrameworkProvider" type="JetEntityFrameworkProvider.JetProviderServices, JetEntityFrameworkProvider" />
      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
    </providers>
  </entityFramework>
  <system.data>
    <DbProviderFactories>
      <remove invariant="JetEntityFrameworkProvider" />
      <add invariant="JetEntityFrameworkProvider" name="Jet Entity Framework Provider" description="Jet Entity Framework Provider" type="JetEntityFrameworkProvider.JetProviderFactory, JetEntityFrameworkProvider" />
    </DbProviderFactories>
  </system.data>
</configuration>

Question: How to connect these ("App.config" -bubibubi) + "App.config" (My)?

I do not understand you My "App.config" (My). `<?xml version="1.0" encoding="utf-8" ?>

` You are providing "App.config" -bubibubi. ``` ```

[it19862]

@bubibubi The topic is closed. Thank.