<rewrite> not a valid child of <system.web> ?

Question

Hopefully I am just overlooking something incredibly simple, if so I apologize....

I have an ASP.NET application in .NET4 and we're trying to use URL rewriting using

<configuration>
    <system.webServer>
        <rewrite>
            <rules>
                <rule....>

For some reason intellisense is returning an error which says that <rewrite> is not a valid child element of <system.webserver>

When I build it and run it, it says something akin to "Error at line 0 in web.config"

If I remove all the <rewrite> lines it works properly (but of course no rewriting)

Is there a switch I need to flip on or something? It has to be something I'm stupidly overlooking....

Thanks

Answer 1

Did you make sure you're targeting Framework 4.0?

<compilation targetFramework="4.0"/>

Answer 2

maybe this helps: http://weblogs.asp.net/owscott/archive/2010/06/04/visual-studio-intellisense-for-url-rewrite.aspx

Answer 3

Do you have URL Rewrite module installed on your IIS?