http://forums.asp.net/1165.aspxThis forum is for any and all questions pertaining to the ASP.NET MVC Storefront Starter Kit. The Storefront is a sample ASP.NET MVC Commerce application which was developed using Test-driven Development, Inversion of Control (IoC), and Dependency Injection.enCommunityServer 2007 SP1 (Build: 20510.895)http://forums.asp.net/thread/2985957.aspxThu, 05 Mar 2009 21:56:33 GMT4c671506-2930-414c-a40b-8bf57ded5924:2985957joepo50http://forums.asp.net/thread/2985957.aspxhttp://forums.asp.net/commentrss.aspx?SectionID=1165&PostID=2985957<p>Hi All,</p><p>I have read the posts about nullreference exceptions having to do with routing issues but none of these apply to me. I am running on IIS 7.0 but still get this error in some storefront code.</p><p>This line in ProductDisplay.ascx is throwing a NullReferenceException when the controller attempts to render this view.<br />I know that the issue is not Model.ProductCode because I can replace with any string literal and same exception. <br /></p><p>&lt;a href=&quot;&lt;%= Html.BuildUrlFromExpression&lt;CatalogController&gt;(x =&gt; x.Show(Model.ProductCode)) %&gt;&quot;&nbsp; </p><p>If anyone has any idea about this, I would sincerely appreciate it. I don&#39;t know how to go about debugging this.</p><p>Thanks</p><p>-Joe</p><p>IIS 7.0 (Vista)<br />ASP.NET MVC RC 2<br /></p><p>&nbsp;</p>