问设置Visual Studio2015- dnx.host.dll中发生'System.InvalidOperationException‘类型的未处理异常

EN

using System;

namespace Hello_World
{
    public class Program
    {
        public void Main(string[] args)
        {
            Console.WriteLine("Hello World");
            Console.ReadLine();
        }
    }
}

    {
  "version": "1.0.0-*",
  "description": "Hello World Console Application",
  "authors": [ "MNaples" ],
  "tags": [ "" ],
  "projectUrl": "",
  "licenseUrl": "",

  "dependencies": {
  },

  "commands": {
    "Hello_World": "Hello_World"
  },

  "frameworks": {
    "dnx451": { },
    "dnxcore50": {
      "dependencies": {
        "System.Collections": "4.0.10-beta-23019",
        "System.Console": "4.0.0-beta-23019",
        "System.Linq": "4.0.0-beta-23019",
        "System.Threading": "4.0.10-beta-23019",
        "Microsoft.CSharp": "4.0.0-beta-23019"
      }
    }
  }
}