Security :: Unable To Cast Object Of Type 'System.Security.Principal.GenericPrincipal' To Type 'System.Web.Se...

Nov 12, 2010

I have a web site that is using windows authentication. 'Enable anonymous access' is unchecked. It works when I call it through Visual Studio but when I put the site on the server I get the following error:

Unable to cast object of type 'System.Security.Principal.GenericPrincipal' to type 'System.Web.Security.RolePrincipal'.

Here is the offending line:

System.Security.Principal.GenericPrincipal genericPrincipal = (System.Security.Principal.GenericPrincipal)HttpContext.Current.User;

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