CODEWITHSUNDEEP
c#entity-frameworkentity-framework-6
qalis
qalis

Reputation: 1523

Entity Framework throwing exception while loading

I'm trying to write my first app in Entity Framework.

In program.cs (where my main() is) I have line ProdContext ctx = new ProdContext();. The prodContext.cs is:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data.Entity;
using System.Text;

namespace Entity_Framework
{
    class ProdContext : DbContext
    {
        public DbSet<Category> Categories { get; set; }
        public DbSet<Product> Products { get; set; }
    }
}

While trying to run main I get exception at above line:


FileNotFoundException: Could not load file or assembly 'System.Configuration.ConfigurationManager, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'.

I have fresh install of Visual Studio with C# and EF (I installed it with install-package entityframework -version 6.1.3.0). Why am I getting that exception?

Upvotes: 1

Views: 181

Answers (1)

Dmytro
Dmytro

Reputation: 1600

I would suggest that you're using .NET Core application while still trying to install .NET library. EF 6 is ".NET" specific library. With .NET Core application type for your project you will have such crash (or similar) if installing .NET EF Version:

enter image description here

For .NET Core applications, you should install Core version. https://www.nuget.org/packages/Microsoft.EntityFrameworkCore/

Make sure you don't have this (or similar) error in your references:

enter image description here

Upvotes: 2

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