yunlang

using System;
using System.Web.Razor;
using System.Web.WebPages;

namespace WE.Runner
{
    public class Global : System.Web.HttpApplication
    {

        protected void Application_Start(object sender, EventArgs e)

yunlang

  <system.web>
    <httpRuntime targetFramework="4.6.1"/>
    <compilation debug="true" targetFramework="4.6.1">
      <buildProviders>
        <add extension=".html" type="System.Web.WebPages.Razor.RazorBuildProvider"/>
      </buildProviders>
    </compilation>
  </system.web>

yunlang

    public class Logger
    {
        private static NLog.Logger logger;

        private static readonly Lazy<Logger> lazy = new Lazy<Logger>(() => new Logger());
        public static Logger Instance { get { return lazy.Value; } }

        public Logger()
        {
            LoggingConfiguration config = new LoggingConfiguration();