This error can occur if for some reason (windows update, service pack update, etc) the ASP.NET configuration in IIS has been changed to use framework 2.x when you are targetting ASP.NET apps for use with 1.1.xx of the framework (i.e. VS.NET 2003). Try right clicking the web site in IIS, clicking on properties, and changing to the ASP.NET property page and checking the .NET framework version.
|