Microsoft.Web.Administration null reference when trying to add application to site

Question

i'm trying to add an application to site via code (C#) and i get a null reference. someone have an idea why?

here's the code i use: Application app;

using (var sm = new ServerManager())
{
    if (site.Applications["/" + appName] == null)
    {
          site.Applications.Add("/" + appName, physicalPath);
          sm.CommitChanges();
    }
    app = site.Applications["/" + appName];
}
return app;

the code fails on the "add" line. the appName is a string like "MyNewApp". the physicalPath is a string like "C:\\inetpub\\wwwroot\\MyService". the site is Microsoft.Web.Administration.Site object of the IIS6.1 (win 7 ent) default web site.

Answer 1

found the answer: NullReferenceException in Microsoft.Web.Administration when adding https binding

its all because of the "using" statement. the site didn't have a parent ServerManager at the point of the application add.