In IIS integrated mode Elmah fails at application start (Can't access HttpContext.Current.Request)

A workaround is described here: http://stackoverflow.com/a/2196594/618331
Just wrapped the normal Elmah log statements in try-catch and added the workaround Elmah log statements in the catch{} blocks.

Can't create a real test for it, because it happens only at Application_start...
A dummy global.asax.cs:

protected void Application_Start()
{
  try {
    //do something...
  }
  catch(Exception exc) {
    //try logging
    logger.Error("something went wrong...", exc); //this is line 50
  }
}

The exception:

System.Web.HttpException (0x80004005): Request is not available in this context
   at System.Web.HttpContext.get_Request()
   at Elmah.ErrorLog.InferApplicationName(HttpContext context)
   at Elmah.ErrorLog.GetDefaultImpl(HttpContext context)
   at Elmah.ServiceContainer.GetService(Type serviceType)
   at Elmah.ErrorLog.GetDefault(HttpContext context)
   at ServiceStack.Logging.Elmah.ElmahInterceptingLogger.Error(Object message)
   at x.Application_Start() in x\Global.asax.cs:line 50

Also had to update Nuget.exe because
   The schema version of 'NLog' is incompatible with version 1.6.21205.9031 of NuGet. Please upgrade NuGet to the latest version from http://go.microsoft.com/fwlink/?LinkId=213942.

Author: AkosLukacs

src/.nuget/NuGet.exe

@@ -43,37 +43,67 @@ public void DebugFormat(string format, params object[] args)
 
 		public void Error(object message, Exception exception)
 		{
-			ErrorLog.GetDefault(HttpContext.Current).Log(new Error(exception, HttpContext.Current));
+			try {
+				ErrorLog.GetDefault(HttpContext.Current).Log(new Error(exception, HttpContext.Current));
+			}
+			catch {
+				ErrorLog.GetDefault(null).Log(new Error(exception));
+			}
 			log.Error(message, exception);
 		}
 
 		public void Error(object message)
 		{
-			ErrorLog.GetDefault(HttpContext.Current).Log(new Error(new System.ApplicationException(message.ToString()), HttpContext.Current));
+			try {
+				ErrorLog.GetDefault(HttpContext.Current).Log(new Error(new System.ApplicationException(message.ToString()), HttpContext.Current));
+			}
+			catch {
+				ErrorLog.GetDefault(null).Log(new Error(new System.ApplicationException(message.ToString())));
+			}
 			log.Error(message);
 		}
 
 		public void ErrorFormat(string format, params object[] args)
 		{
-			ErrorLog.GetDefault(HttpContext.Current).Log(new Error(new System.ApplicationException(string.Format(format, args)), HttpContext.Current));
+			try {
+				ErrorLog.GetDefault(HttpContext.Current).Log(new Error(new System.ApplicationException(string.Format(format, args)), HttpContext.Current));
+			}
+			catch {
+				ErrorLog.GetDefault(null).Log(new Error(new System.ApplicationException(string.Format(format, args))));
+			}
 			log.ErrorFormat(format, args);
 		}
 
 		public void Fatal(object message, Exception exception)
 		{
-			ErrorLog.GetDefault(HttpContext.Current).Log(new Error(exception, HttpContext.Current));
+			try {
+				ErrorLog.GetDefault(HttpContext.Current).Log(new Error(exception, HttpContext.Current));
+			}
+			catch {
+				ErrorLog.GetDefault(null).Log(new Error(exception));
+			}
 			log.Fatal(message, exception);
 		}
 
 		public void Fatal(object message)
 		{
-			ErrorLog.GetDefault(HttpContext.Current).Log(new Error(new System.ApplicationException(message.ToString()), HttpContext.Current));
+			try {
+				ErrorLog.GetDefault(HttpContext.Current).Log(new Error(new System.ApplicationException(message.ToString()), HttpContext.Current));
+			}
+			catch {
+				ErrorLog.GetDefault(null).Log(new Error(new System.ApplicationException(message.ToString())));
+			}
 			log.Fatal(message);
 		}
 
 		public void FatalFormat(string format, params object[] args)
 		{
-			ErrorLog.GetDefault(HttpContext.Current).Log(new Error(new System.ApplicationException(string.Format(format, args)), HttpContext.Current));
+			try {
+				ErrorLog.GetDefault(HttpContext.Current).Log(new Error(new System.ApplicationException(string.Format(format, args)), HttpContext.Current));
+			}
+			catch {
+				ErrorLog.GetDefault(null).Log(new Error(new System.ApplicationException(string.Format(format, args))));
+			}
 			log.FatalFormat(format, args);
 		}