I have a sitemap file in the root of my project and a provider defined in the sitemap providers section of web.config.  However, when I access the page the error "The SiteMapProvider 'Web.sitemap' cannot be found" is returned.  Is there a step I am missing?

The web.config looks like this:

<siteMap>
    <providers>
           <add siteMapFile="Web.sitemap" name="SiteMap1" type="System.Web.XmlSiteMapProvider"/>
    </providers>
</siteMap>

If you are using the default provider, try this...

<siteMap>
    <providers>
           <add siteMapFile="Web.sitemap" name="AspNetXmlSiteMapProvider" type="System.Web.XmlSiteMapProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
    </providers>
</siteMap>

That throws a configuration error, "The entry 'AspNetXmlSiteMapProvider' has already been added"

Sounds like a duplicate entry, add a clear to the statement just below providers....

<siteMap>
    <providers>

<clear/>
           <add siteMapFile="Web.sitemap" name="AspNetXmlSiteMapProvider" type="System.Web.XmlSiteMapProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
    </providers>
</siteMap>

That takes care of the configuration error, but it still cannot find the provider.

I also should mention that this is in a MasterPage and I have a SiteMapDataSource and TreeView control on it.  In the Page_Load event of the MasterPage, I have the statement

Not sure if this is helpful, but it's full disclosure. 

You need the name of the provider "AspNetXmlSiteMapProvider", not the siteMap.....

Burl

Thank you, that was it all along.  I hate it when I miss the solution staring me in the face.  Again, thanks for your help.