Unhandled Exception: System.TypeLoadException: Abstract method with non-zero RVA.

[dodyg]

SDK 1.0.4 (from dotnet --version) using Windows 10 Creators Update

Project

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>net461</TargetFramework>
    <RuntimeIdentifier>win7-x86</RuntimeIdentifier>
    <OutputTypeEx>exe</OutputTypeEx>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.1.3" />
    <PackageReference Include="Microsoft.AspNetCore.Hosting" Version="1.1.2" />
    <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel" Version="1.1.1" />
  </ItemGroup>
</Project>

Program.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
namespace MvcTest
{
    public class Startup
    {
        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app)
        {
            app.Run(async (context) =>
            {
                await context.Response.WriteAsync("Hello World!");
            });
        }
    }

    public class Program
    {
        public static void Main(string[] args)
        {
            var host = new WebHostBuilder()
                .UseKestrel()
                .UseContentRoot(Directory.GetCurrentDirectory())
                .UseStartup<Startup>()
                .Build();

            host.Run();
        }
    }
}

Generates the following error

Unhandled Exception: System.TypeLoadException: Abstract method with non-zero RVA.
   at Microsoft.Extensions.DependencyInjection.DataProtectionServices.<GetDefaultServices>d__0.MoveNext()
   at Microsoft.Extensions.DependencyInjection.Extensions.ServiceCollectionDescriptorExtensions.TryAdd(IServiceCollection collection, IEnumerable`1 descriptors)
   at Microsoft.Extensions.DependencyInjection.DataProtectionServiceCollectionExtensions.AddDataProtection(IServiceCollection services)
   at Microsoft.Extensions.DependencyInjection.MvcViewFeaturesMvcCoreBuilderExtensions.AddViewServices(IServiceCollection services)
   at Microsoft.Extensions.DependencyInjection.MvcViewFeaturesMvcCoreBuilderExtensions.AddViews(IMvcCoreBuilder builder)
   at Microsoft.Extensions.DependencyInjection.MvcServiceCollectionExtensions.AddMvc(IServiceCollection services)
   at MvcTest.Startup.ConfigureServices(IServiceCollection services)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.AspNetCore.Hosting.ConventionBasedStartup.ConfigureServices(IServiceCollection services)
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.EnsureApplicationServices()
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.BuildApplication()
   at Microsoft.AspNetCore.Hosting.WebHostBuilder.Build()
   at MvcTest.Program.Main(String[] args)

[dodyg]

This is how I fixed it:

• I uninstalled the SDK
• Reboot
• Reinstall
• delete the bin and obj folders
• dotnet restore
• dotnet run