CODEWITHSUNDEEP
c#asp.net.netasp.net-coreasp.net-core-mvc
gsiradze
gsiradze

Reputation: 4733

'System.TypeLoadException' occurred in > Microsoft.AspNet.Mvc.Core.dll

I'm trying to create sample asp.net core application. But on debug it throws an error:

An exception of type 'System.TypeLoadException' occurred in Microsoft.AspNet.Mvc.Core.dll but was not handled in user code

Additional information: Could not load type 'Microsoft.Extensions.DependencyInjection.Extensions.ServiceCollectionExtensions' from assembly 'Microsoft.Extensions.DependencyInjection.Abstractions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.

what's wrong?

project.json

{
  "dependencies": {
    "Microsoft.AspNet.Mvc": "6.0.0-rc1-final",
    "Microsoft.AspNetCore.Diagnostics": "1.0.0",
    "Microsoft.AspNetCore.Mvc.Core": "1.0.1",
    "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
    "Microsoft.AspNetCore.Server.Kestrel": "1.0.1",
    "Microsoft.AspNetCore.StaticFiles": "1.0.0",
    "Microsoft.Extensions.Logging.Console": "1.0.0",
    "Microsoft.NETCore.App": {
      "version": "1.0.1",
      "type": "platform"
    }
  },

  "tools": {
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final"
  },

  "frameworks": {
    "netcoreapp1.0": {
      "imports": [
        "dotnet5.6",
        "portable-net45+win8"
      ]
    }
  },

  "buildOptions": {
    "emitEntryPoint": true,
    "preserveCompilationContext": true
  },

  "runtimeOptions": {
    "configProperties": {
      "System.GC.Server": true
    }
  },

  "publishOptions": {
    "include": [
      "wwwroot",
      "web.config"
    ]
  },

  "scripts": {
    "postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
  }
}

Startup.cs

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 http://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, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole();

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseStaticFiles();

            app.UseMvc();
        }
    }

Upvotes: 2

Views: 3017

Answers (3)

Tseng
Tseng

Reputation: 64288

Remove "Microsoft.AspNetCore.Mvc.Core": "1.0.1" and "Microsoft.AspNet.Mvc": "6.0.0-rc1-final", then replace it with "Microsoft.AspNetCore.Mvc": "1.0.1"

Final version

{
  "dependencies": {
    "Microsoft.AspNetCore.Diagnostics": "1.0.0",
    "Microsoft.AspNetCore.Mvc": "1.0.1",
    "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
    "Microsoft.AspNetCore.Server.Kestrel": "1.0.1",
    "Microsoft.AspNetCore.StaticFiles": "1.0.0",
    "Microsoft.Extensions.Logging.Console": "1.0.0",
    "Microsoft.NETCore.App": {
      "version": "1.0.1",
      "type": "platform"
    }
  }

Microsoft.AspNet.Mvc already references Microsoft.AspNet.Mvc.Core, so there is no need to reference it directly.

Upvotes: 1

Paweł Hemperek
Paweł Hemperek

Reputation: 1180

Your project.json looks like you were using ASP.NET Core RC2, but since then you upgraded to released version.

Documentation says, that in order to make everything work in RC2 you were supposed to

If you were targeting .NET Core with RC2, you needed to add imports to project.json as a temporary workaround for some of EF Core’s dependencies not supporting .NET Standard. These can now be removed.

Source: ASP.NET Core documentation

So remove 

"imports": [
    "dotnet5.6",
    "portable-net45+win8"
]

from your project.json

Upvotes: 0

dewebeloper
dewebeloper

Reputation: 53

You are missing "Microsoft.Extensions.DependencyInjection.Abstractions": "1.0.0" in dependencies.

Upvotes: 0

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